public async Task <ActionResult> DeleteUserRole(string id, string rid)
        {
            try
            {
                await _service.DeleteUserRole(id, rid);

                return(new NoContentResult());
            }
            catch (ControllerNotFoundException e)
            {
                return(NotFound(e.Message));
            }
            catch (ControllerBadRequestException e)
            {
                return(BadRequest(e.Message));
            }
            catch (ControllerUnauthorizedException)
            {
                return(new UnauthorizedResult());
            }
        }