EVENT_JSON:{"standard":"Nep245Event","version":"1.0.0","event":"mt_transfer","data":[{"old_owner_id":"nearcon-demo.testnet","new_owner_id":"ecfbeb4e0215d43fb487d8fb03ac095e674c9a0db6e063f1b2bb06cf80fc7621","token_ids":["1","3"],"amounts":["6","1"]}]}