EVENT_JSON:{"standard":"nep171","version":"1.0.0","event":"nft_transfer","data":[{"authorized_id":null,"old_owner_id":"f66c53ce29d881c6ebb4629cf5d5fac92a3ae25d55f732285bfdc76139194a6e","new_owner_id":"c4a7ff16e00cf339ec064ee8ac7e12018549aef2c0b5c15953cb03632ddb16ec","token_ids":["37900"],"memo":null}]}