public async Task <IActionResult> CreateService(ServiceDTO data)
        {
            if (ModelState.IsValid)
            {
                var result = await subscriptionService.CreateService(data);

                await unitOfWork.SaveChanges();

                if (result != null)
                {
                    return(CreatedAtAction(nameof(GetService), new { id = result.ServiceId }, result));
                }
                else
                {
                    return(BadRequest(data));
                }
            }
            return(Conflict(ModelState));
        }