EVENT_JSON:{"standard":"nep171","version":"1.0.0","event":"nft_transfer","data":[{"old_owner_id":"1ab9a0f080ef4f3f96c81dbfbb13196476e3317fcc53497194e8feba0bc39d72","new_owner_id":"f8232630bb2cb7297802e47fbb0566292515208f9f3e06540f6878c753986260","token_ids":["1:8500"]}]}