public void SignedTransaction_Transaction()
        {
            var xmlpath = PathFor("SignedTransaction.xml");

            _service = new CoreService("", "", "RKOCG5D8D3fZxDSg504D0IxU2XD4Io5VXmyzdCtTivHFTTSylzM2ZzTWFwVH4ucG", "");

            var transaction = _service.Deserialize<Transaction>(File.ReadAllText(xmlpath));

            var actual = _service.ValidateTransactionSignature(transaction);

            Assert.IsTrue(actual);
        }