diff --git a/samples/sign_management.php b/samples/sign_management.php
index 2b39d07..349f83e 100644
--- a/samples/sign_management.php
+++ b/samples/sign_management.php
@@ -7,7 +7,7 @@
 use Ilovepdf\SignatureManagement;
 
 $signatureRequest = new SignatureManagement("publickey", "secretkey");
-$signatureToken = "signaturetoken";
+$signatureToken = "token_requester";
 $receiverToken = "receivertoken";
 
 // Get a list of all created signature requests
diff --git a/src/Ilovepdf.php b/src/Ilovepdf.php
index 174ea3c..6c223cd 100644
--- a/src/Ilovepdf.php
+++ b/src/Ilovepdf.php
@@ -4,6 +4,7 @@
 
 use Ilovepdf\Exceptions\DownloadException;
 use Ilovepdf\Exceptions\ProcessException;
+use Ilovepdf\Exceptions\SignatureException;
 use Ilovepdf\Exceptions\StartException;
 use Ilovepdf\Exceptions\TaskException;
 use Ilovepdf\Exceptions\UploadException;
@@ -45,7 +46,7 @@ class Ilovepdf
      */
     public static $apiVersion = 'v1';
 
-    const VERSION = 'php.1.2.3';
+    const VERSION = 'php.1.2.5';
 
     /**
      * @var string|null
@@ -264,7 +265,7 @@ public function sendRequest(string $method, string $endpoint, array $params = []
                     }
                     //signature exception
                     if(strpos($endpoint, 'signature') !== false){
-                        throw new ProcessException($responseBody->error->type, $responseBody, $response->getStatusCode());
+                        throw new SignatureException($responseBody->error->type, $responseBody, $response->getStatusCode());
                     }
 
                     if (isset($responseBody->error) && isset($responseBody->error->type)) {
diff --git a/src/SignTask.php b/src/SignTask.php
index d0859f2..744828c 100644
--- a/src/SignTask.php
+++ b/src/SignTask.php
@@ -337,7 +337,7 @@ public function execute()
         //$response = parent::sendRequest('post', 'signature', http_build_query($body, null, '&', PHP_QUERY_RFC3986));
         $response = parent::sendRequest('post', 'signature', $body,false);
         try {
-            $this->result = json_decode($response->getBody());
+            $this->result = json_decode($response->getBody()->getContents());
         }
         catch(\Exception $e){
             throw new ProcessException('Bad request');
diff --git a/src/SignatureManagement.php b/src/SignatureManagement.php
index 930a1da..7b3d2d5 100644
--- a/src/SignatureManagement.php
+++ b/src/SignatureManagement.php
@@ -2,6 +2,7 @@
 
 namespace Ilovepdf;
 
+use Psr\Http\Message\ResponseInterface;
 use stdClass;
 use Ilovepdf\Exceptions\DownloadException;
 
@@ -18,6 +19,7 @@ class SignatureManagement extends Ilovepdf
      * @param int $per_page
      * 
      * @return array
+     * @throws \Exception
      */
     public function getSignaturesList($page = 0, $per_page = 20): array
     {
@@ -26,26 +28,26 @@ public function getSignaturesList($page = 0, $per_page = 20): array
             "per-page" => $per_page
         ];
         $response = parent::sendRequest("get", "signature/list", $data);
-        $headers = $response->headers;
-        $return = [
-            "signatures" => $response->body,
+        $headers = $response->getHeaders();
+        return [
+            "signatures" => $response->getBody()->getContents(),
             "pagination" => [
                 'totalCount' => $headers && isset($headers['X-Pagination-Total-Count']) ? $headers['X-Pagination-Total-Count'] : '',
-                'page' => $headers && isset($headers['X-Pagination-Current-Page']) ? $headers['X-Pagination-Current-Page'] - 1 : '',
+                'page' => $headers && isset($headers['X-Pagination-Current-Page']) ? (int)$headers['X-Pagination-Current-Page'] - 1 : '',
                 'pageSize' => $headers && isset($headers['X-Pagination-Per-Page']) ? $headers['X-Pagination-Per-Page'] : ''
             ]
         ];
-        return $return;
     }
 
     /**
      * @param string $signatureId
      * 
      * @return stdClass
+     * @throws \Exception
      */
     public function getSignatureStatus(string $signatureId): stdClass
     {
-        return parent::sendRequest("get", "signature/requesterview/{$signatureId}")->body;
+        return json_decode(parent::sendRequest("get", "signature/requesterview/{$signatureId}")->getBody()->getContents());
     }
 
     /**
@@ -95,10 +97,10 @@ public function downloadSignedFiles(string $signatureId, string $pathToSave, str
      */
     public function fixReceiverEmail(string $receiverTokenRequester, string $newEmail): bool
     {
-        $body = [
+        $body = ['form_params' => [
             "email" => $newEmail
-        ];
-        $response = parent::sendRequest("put", "signature/signer/fix-email/{$receiverTokenRequester}", $body, false, true);
+        ]];
+        parent::sendRequest("put", "signature/signer/fix-email/{$receiverTokenRequester}", $body, false, true);
         //if above fails, it throws an exception
         return true;
     }
@@ -111,9 +113,9 @@ public function fixReceiverEmail(string $receiverTokenRequester, string $newEmai
      */
     public function fixSignerPhone(string $signerTokenRequester, string $newPhone): bool
     {
-        $body = [
+        $body = ['form_params' => [
             "phone" => $newPhone
-        ];
+        ]];
         $response = parent::sendRequest("put", "signature/signer/fix-phone/{$signerTokenRequester}", $body, false, true);
         //if above fails, it throws an exception
         return true;
@@ -127,7 +129,7 @@ public function fixSignerPhone(string $signerTokenRequester, string $newPhone):
     public function sendReminders(string $signatureId): bool
     {
         $body = [];
-        $response = parent::sendRequest("post", "signature/sendReminder/{$signatureId}", $body, false, true);
+        parent::sendRequest("post", "signature/sendReminder/{$signatureId}", $body, false, true);
         //if above fails, it throws an exception
         return true;
     }
@@ -136,11 +138,12 @@ public function sendReminders(string $signatureId): bool
      * @param string $signatureId
      * 
      * @return bool
+     * @throws \Exception
      */
     public function voidSignature(string $signatureId): bool
     {
         $body = [];
-        $response = parent::sendRequest("put", "signature/void/{$signatureId}", $body, false, true);
+        parent::sendRequest("put", "signature/void/{$signatureId}", $body, false, true);
         //if above fails, it throws an exception
         return true;
     }
@@ -150,13 +153,14 @@ public function voidSignature(string $signatureId): bool
      * @param int $amountOfDays
      * 
      * @return bool
+     * @throws \Exception
      */
     public function increaseExpirationDays(string $signatureId, int $amountOfDays): bool
     {
         $body = [
             "days" => $amountOfDays
         ];
-        $response = parent::sendRequest("put", "signature/void/{$signatureId}", $body, false, true);
+        parent::sendRequest("put", "signature/void/{$signatureId}", $body, false, true);
         //if above fails, it throws an exception
         return true;
     }
@@ -165,10 +169,11 @@ public function increaseExpirationDays(string $signatureId, int $amountOfDays):
      * @param string $receiverTokenRequester
      * 
      * @return stdClass
+     * @throws \Exception
      */
     public function getReceiverInfo(string $receiverTokenRequester): stdClass
     {
-        return parent::sendRequest("get", "signature/receiver/info/{$receiverTokenRequester}")->body;
+        return json_decode(parent::sendRequest("get", "signature/receiver/info/{$receiverTokenRequester}")->getBody()->getContents());
     }
 
     /**
@@ -189,15 +194,16 @@ private function getExtensionFromMime(string $mime_type)
         return explode("/", $mime_type)[1];
     }
 
-    protected function downloadResponseToFile($response, string $pathToSave, string $filename): string
+    protected function downloadResponseToFile(ResponseInterface $response, string $pathToSave, string $filename): string
     {
         if (!is_dir($pathToSave)) {
             throw new \Exception("{$pathToSave} is not a directory");
         }
-        $mime_type = $response->headers["Content-Type"];
-        $filePath = "{$pathToSave}/{$filename}." . $this->getExtensionFromMime($mime_type);
-        if (!file_put_contents($filePath, $response->raw_body)) {
-            throw new DownloadException("Download success, but could not save the contents of the file to {$filePath}. Check permissions of the directory", 1, null, $response);
+        $mime_type = $response->getHeaders()["Content-Type"];
+        $filePath = "{$pathToSave}/{$filename}." . $this->getExtensionFromMime($mime_type[0]);
+        $fileContent = $response->getBody()->getContents();
+        if (!file_put_contents($filePath, $fileContent)) {
+            throw new DownloadException("Download success, but could not save the contents of the file to {$filePath}. Check permissions of the directory", 1, null, $fileContent);
         }
         return $filePath;
     }