EVENT_JSON:{"standard":"nep171","version":"1.0.0","event":"nft_transfer","data":[{"old_owner_id":"48d7f2d39b7140d430cb92803d35c0e408559b7cb811974df3e6cfca9f50f50c","new_owner_id":"b4090c6b024c377897bc04c11fe29961d58edc4d287be8fcd45e7b14738e72b5","token_ids":["324"]}]}