public IHttpActionResult PostClient(Client user)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }
            ObjectParameter output = new ObjectParameter("responseMessage", typeof(string));

            db.PR_CreateClient(user.User.IdCard, user.User.Username, user.User.Password, user.User.FirstName, user.User.MiddleName, user.User.LastName,
                               user.User.SecondLastName, user.AccountNumber, output);
            var neo = NeoConnection.Instance;

            neo.AddUser(Decimal.ToInt32(user.User.IdCard));
            RegisterResponse response = new RegisterResponse()
            {
                Response = output.Value.ToString()
            };

            return(Ok(response));
        }