Feature: Restrict user to have one role per entity

[arvindh123]

Is your feature request related to a problem? Please describe.

If user have multiple roles for a entity, then it will be difficult to mange the users in which user present

Describe the feature you are requesting, as well as the possible use case(s) for it.

We should limit user to have one role per entity

Indicate the importance of this feature to you.

Must-have

Anything else?

No response