Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwEUrPh/bKqUCMCaQ4DEJnQ/1MCtdqwTv7m7aGjfbRJH2TqKviZvTSe9GAv3… (844 chars)"
  }
}