Create extrinsic_record.json

extrinsic_record.json

@@ -0,0 +1,4 @@
+{
+  "extrinsic": "454883-5",
+  "hotkey": "5CVRYzk6YGc3FQoYWJNY1whJdVs95ALZhDTUfGHSosBrbrWS"
+}