Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwA6XClzo6XWjKnbS45zXcaoXNLzQMixq/G1xsDNYcCb0kj6Yb8S7J2AHrPz… (844 chars)"
  }
}