Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFqSc+cAB7V0Hc4K1HCzB6pU+i9O6XkxUX4WS2xJ3g9HjmRj8WeN06lWXVM… (844 chars)"
  }
}