Erro com estrutura Json conteudo {}

[Luciano-DevMaker]

Estou executando o FromJson com um Json
Neste formato :
Devido a esse campo : "localePolicy": {},
O retorno esta sendo Nil

{
"signHereTabs": [{
"stampType": "signature",
"isSealSignTab": "false",
"name": "SignHere",
"tabLabel": "Sign Here",
"scaleValue": "1",
"optional": "false",
"documentId": "1",
"recipientId": "1",
"pageNumber": "1",
"xPosition": "150",
"yPosition": "30",
"width": "0",
"height": "0",
"tabId": "e3312938-631b-439e-97f0-88e790c6a86e",
"tabType": "signhere"
}
],
"textTabs": [{
"requireAll": "false",
"name": "nome",
"value": "",
"required": "true",
"locked": "false",
"concealValueOnDocument": "false",
"disableAutoSize": "false",
"tabLabel": "",
"font": "arial",
"fontSize": "size7",
"localePolicy": {},
"documentId": "1",
"recipientId": "1",
"pageNumber": "1",
"xPosition": "20",
"yPosition": "29",
"width": "0",
"height": "0",
"tabId": "61936392-2f74-41eb-b658-abdbbea58534",
"tabType": "text"
}, {
"requireAll": "false",
"name": "documento",
"value": "",
"required": "true",
"locked": "false",
"concealValueOnDocument": "false",
"disableAutoSize": "false",
"tabLabel": "",
"font": "arial",
"fontSize": "size7",
"localePolicy": {},
"documentId": "1",
"recipientId": "1",
"pageNumber": "1",
"xPosition": "20",
"yPosition": "60",
"width": "0",
"height": "0",
"tabId": "5652b7a0-844f-4088-a95b-d81a5895fdb3",
"tabType": "text"
}, {
"requireAll": "false",
"name": "dataChegada",
"value": "",
"required": "true",
"locked": "false",
"concealValueOnDocument": "false",
"disableAutoSize": "false",
"tabLabel": "",
"font": "arial",
"fontSize": "size7",
"localePolicy": {},
"documentId": "1",
"recipientId": "1",
"pageNumber": "1",
"xPosition": "402",
"yPosition": "31",
"width": "0",
"height": "0",
"tabId": "6e37171e-e7b2-4181-b0bf-486dbc4f6892",
"tabType": "text"
}, {
"requireAll": "false",
"name": "horaChegada",
"value": "",
"required": "true",
"locked": "false",
"concealValueOnDocument": "false",
"disableAutoSize": "false",
"tabLabel": "",
"font": "arial",
"fontSize": "size7",
"localePolicy": {},
"documentId": "1",
"recipientId": "1",
"pageNumber": "1",
"xPosition": "470",
"yPosition": "31",
"width": "0",
"height": "0",
"tabId": "4915aa0b-4365-4e59-9ed0-976c05dfc272",
"tabType": "text"
}, {
"requireAll": "false",
"name": "dataSaida",
"value": "",
"required": "true",
"locked": "false",
"concealValueOnDocument": "false",
"disableAutoSize": "false",
"tabLabel": "",
"font": "arial",
"fontSize": "size7",
"localePolicy": {},
"documentId": "1",
"recipientId": "1",
"pageNumber": "1",
"xPosition": "402",
"yPosition": "58",
"width": "0",
"height": "0",
"tabId": "f836eac6-160b-4020-9577-a17200ea7ae1",
"tabType": "text"
}, {
"requireAll": "false",
"name": "horaSaida",
"value": "",
"required": "true",
"locked": "false",
"concealValueOnDocument": "false",
"disableAutoSize": "false",
"tabLabel": "",
"font": "arial",
"fontSize": "size7",
"localePolicy": {},
"documentId": "1",
"recipientId": "1",
"pageNumber": "1",
"xPosition": "470",
"yPosition": "58",
"width": "0",
"height": "0",
"tabId": "ae4f70f1-bfe8-4c32-b97b-680ed58f8841",
"tabType": "text"
}
]
}