Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQCGm4bX8RgOx9DW1AcWUWuXgqqK/FCgAMn9Kf8PrkmczTHa+hymv1D/ExNM… (1,748 chars)"
  }
}