Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwG3iXQyKNPUMZPFa9txGgklrlYS1BVy6ByzOSJNiZg82W+xITYWm7/EyM4M… (844 chars)"
  }
}