Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQBOzbuOHbbiA8+NKjJeA1thZS1fiCM1AoEtrzvaQAQuam8CytiS6RK6Zg4J… (1,748 chars)"
  }
}