Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFy8QHR7gQfv2CY9TUFJXjNk+g34RqxMrZM8tNHwjPQiwOxMO4pwcs4Xetq… (844 chars)"
  }
}