Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwGeIh5Yf9RszzMKfRo8FJvB+1rFPpcYgXUXSRK3lZNlY1Eywb+Nn4DxPNRB… (844 chars)"
  }
}