Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGYvqo2FI7YS1H70gLOxfHnZlPoK7miBnC7gxMSntVb1XSsq+n9jG1E4Y2I… (844 chars)"
  }
}