EVENT_JSON:{"standard":"nep171","version":"1.0.0","event":"nft_transfer","data":[{"old_owner_id":"48d7f2d39b7140d430cb92803d35c0e408559b7cb811974df3e6cfca9f50f50c","new_owner_id":"674d895a861c548d4777a124603963017e0824edf768e70c9ab28609f090c058","token_ids":["324"]}]}