Authz - Add user in User Based Policy with new user (without supply all users again)

Hello,

I’m working with a resource server client for Authorization and I use the User Based Policies to create a fine-grained resource.

Is there any way to update the policy without having to supply all users every time?

I’m working with external concurrency and lots of user-based policies and send every time the entire list may cause persistent data or perfomance problems.

Thanks in advance