Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwC8If6ZcJBbhzvH+0r1qQyb4Xz8/bIb1f75TxvKNvyo8A+qQCUg+D+Nw0GW… (844 chars)"
  }
}