Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwBkcuDyUrYmjOyFXxtOz8LT/eA4mF5ASEOBgkANwXd0eT/bLEPlp4vGJ9a6… (844 chars)"
  }
}