Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQCNpgYrLnHvEepFGGi/TE9Fcl3hVpzNk0yv0hOCnPjon18fYcVpyoi9X1g+… (1,748 chars)"
  }
}