fixed issue #163 on v2.6.1

SOL005/NSDManagement-API/NSDManagementKeywords.robot

@@ -1019,10 +1019,9 @@ Send Patch request for individual NSD Management Subscription
 Check Postcondition NSD Management Subscription is Unmodified (Implicit)
     Log    Check postconidtion subscription not modified
     GET individual NSD Management Subscription
-    Log    Check Response matches original VNF Threshold
-    ${subscription}=    evaluate    json.loads('''${response['body']}''')    json
-    Should Be Equal    ${origResponse['body']['id']}    ${subscription.id}
-    Should Be Equal    ${origResponse['body']['callbackUri']}    ${subscription.callbackUri}
+    Log    Check Response matches original subscription
+    Should Be Equal    ${origResponse['body']['id']}    ${response['body']['id']}
+    Should Be Equal    ${origResponse['body']['callbackUri']}    ${response['body']['callbackUri']}
 
 Check Postcondition NSD Management Subscription is not Created
     Log    Trying to get a new subscription