Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQAZ3+0D/tUB5oNcp0V6LlEFDB0zyW+MlhyNFAg4HkiuX1zuEtFZtw4ZwniZ… (1,748 chars)"
  }
}