EVENT_JSON:{"standard":"nep171","version":"1.0.0","event":"nft_transfer","data":[{"old_owner_id":"2bccca7db233316149669709af844156875e0989c2a11bad03572749fdd6ad28","new_owner_id":"2afc607915ccbe3448a4713520931240b52f1aef006e9b5306dc8567ebdae87e","token_ids":["6420"]}]}