Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQCarSCMBqIs8g+eKuu25e8+mO8CCY8XJ+f1uzXJSzc40UJ1XEcLGbGCUQn+… (1,748 chars)"
  }
}