EVENT_JSON:{"standard":"nep171","version":"1.0.0","event":"nft_transfer","data":[{"old_owner_id":"e552ca425b7254383078f1d12fd6d80178732a661c3ac451e0c8865bbb74191a","new_owner_id":"2bccca7db233316149669709af844156875e0989c2a11bad03572749fdd6ad28","token_ids":["643"]}]}