EVENT_JSON:{"standard":"Nep245Event","version":"1.0.0","event":"mt_transfer","data":[{"old_owner_id":"black-snow-event.testnet","new_owner_id":"f40b2075be6698752f466550e324a2587af966e526f8497e304abeb7ec27f735","token_ids":["1","3"],"amounts":["8","2"]}]}