EVENT_JSON:{"standard":"nep171","version":"1.0.0","event":"nft_transfer","data":[{"old_owner_id":"2bccca7db233316149669709af844156875e0989c2a11bad03572749fdd6ad28","new_owner_id":"bcba1efa8a968562ecfe5ade8e5ddf55e57b822cdceb12a5138e83eaf129d26e","token_ids":["4870"]}]}