diff --git a/neo/Core/TX/TransactionAttribute.py b/neo/Core/TX/TransactionAttribute.py
index 77877f30f..c222074ed 100644
--- a/neo/Core/TX/TransactionAttribute.py
+++ b/neo/Core/TX/TransactionAttribute.py
@@ -126,18 +126,10 @@ def Serialize(self, writer):
 
     def ToJson(self):
 
-        outstr = self.Data
-
-        try:
-            outstr = binascii.unhexlify(self.Data)
-        except Exception as e:
-
-            print("couldnt decode data %s " % self.Data)
-            outstr = self.Data.decode('utf-8')
 
 
         obj = {
             'usage': self.Usage,
-            'data': outstr
+            'data': '' if not self.Data else self.Data.hex()
         }
         return obj
\ No newline at end of file