Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwG5byCK6Yy8Y0XV0F2hgVnDJX/HzUEwDjxEaXFFOSCYNUa3CgBayO943jF1… (844 chars)"
  }
}