For assigning a role to a user, is there a way to do this with the Frontend SDK? Or is there a way for the frontend to send information to the backend about which role a user should be assigned? From the documentation, all of the SDK functions for creating/updating/deleting/listing/assigning roles are done on the backend. Our App knows which role should be assigned, but our backend does not, so the easiest way for us to do this would be to assign the role on the frontend or send the value to assign from the frontend to the backend. Is this possible?