Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwH/gH1C2M+XaYyz/1KTiCgFVsfFU7Qam0Lo5Og5quAg8RwhiPwl/U7Igjvb… (844 chars)"
  }
}