Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwCOu6rRz2y7zN6lKDRRF99pZtQ2QFBeOaOCDuh6NACfAzLwJq8B2K/luO2X… (844 chars)"
  }
}