public async Task InsertUserAuth(string username, bool isCard)
        {
            Console.WriteLine(username + " " + isCard.ToString());

            var res = new NfcDBUserAuthRow {User = username, IsCard = isCard };

            var nfc = new NfcDB.UserAuth();
            nfc.Insert(res);

        }
        public async Task InsertUserAuth(string username)
        {
            Console.WriteLine(username);

            var res = new NfcDBUserAuthRow { User = username };

            var nfc = new NfcDB.UserAuth();
            nfc.Insert(res);

        }