Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwBYoIf0FXYZxQcHBjylJx3pIeFmOq+iImn5/ZPfUkhwgWTZLdpY5sG8QbsX… (844 chars)"
  }
}