EVENT_JSON:{"standard":"nep171","version":"1.0.0","event":"nft_transfer","data":[{"old_owner_id":"891007b349dd6a56eee9cd2150c3d7fe9969f17581b02467ade928aaa5064653","new_owner_id":"2bccca7db233316149669709af844156875e0989c2a11bad03572749fdd6ad28","token_ids":["684"]}]}