Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHBf6CALOuVxEyi6+JdvULdOdJBDNoWcx1YS+GADd4xgFpGp8OeVkBu4Cfi… (844 chars)"
  }
}