public override void Execute(LoginViewModel model)
        {
            var httpClient = new WSHttpClient();
            var responce   = httpClient.PostData <LoginResponceViewModel>("User/login/", JsonConvert.SerializeObject(model), false);

            if (responce.Answer != null)
            {
                LocalDatabase.AddNewItem(new LocalUserModel(responce.Answer));
            }

            CommonExecute(responce);
        }