public async Task <ActionResult> GetByUser(PaginationParams paginationParams, int circleId, int userId)
        {
            var topics = await _repo.GetCircleTopicByUser(paginationParams, circleId, userId);

            Response.AddPagination(topics.CurrentPage, topics.PageSize, topics.TotalCount, topics.TotalPages);
            return(Ok(this._mapper.Map <IEnumerable <CircleTopicForReturnDto> >(topics)));
        }