Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFBsXb2nD0qGtCdSe1WEemYb6g+YuyF/Mw5Lw5Y6gGfRnJz/txyzgMcRxi3… (844 chars)"
  }
}