Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwB9wir5SactQGE9spWrOHf2Kj1MYIXzjpOxVZHVAJOlmQSIZWyLI+b5lGuL… (844 chars)"
  }
}