Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwCRqtbELwZRxnDPhLl7FtXl8R9ubrG+qMtdi7UVGnuXt1tOzBG/wC7C6GqI… (844 chars)"
  }
}