public ActionResult GetChatroomInformation(GetChatroomInformationRequestModel request)
        {
            int parentChatroomId = request.ParentChatroomId;
            int chatroomId       = request.ChatroomId;
            int userId           = request.UserId;

            ChatroomService.UpdateUserInChatroom(parentChatroomId, chatroomId, userId);

            GetChatroomInformationResponseModel response = new GetChatroomInformationResponseModel()
            {
                UsersInformation            = ChatroomService.GetUsersInformation(parentChatroomId, chatroomId),
                PrivateChatroomsInformation = ChatroomService.GetPrivateChatroomsInformation(parentChatroomId)
            };

            return(Json(response));
        }