Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwG1cWXx6uOHJlWcGHg9sl6JtacfcGdmlEHApk+1eLzq8nE5+iEcY8JAYqP/… (844 chars)"
  }
}