Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwBbXoVYAkSs9NFfYcQ0KkVWxTDBC/0aoeQqqHQ8XHf6TFUwGzlL6Fxx3Xsz… (844 chars)"
  }
}