EVENT_JSON:{"standard":"nep171","version":"1.0.0","event":"nft_transfer","data":[{"old_owner_id":"a22bb24d6ff467f4e6c122bb4e5bd1e11f2cdc0020b8d7f97a352435757c4187","new_owner_id":"6cd4c716bc5c74296d65896e3e51bbc1b8bfc4eaac2e03c22e15de84cc687a41","token_ids":["3901"]}]}