EVENT_JSON:{"standard":"nep171","version":"1.0.0","event":"nft_transfer","data":[{"old_owner_id":"4687ccef7f1596e922bf8310f8b31b3d8e874bb5ae6ae1a409f308e126c32a25","new_owner_id":"0500ee199588c5003eef5f22ec9b6d3545dad2a72b617de5043fb3b399e9d693","token_ids":["20001687CR1812"]}]}