Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwA9CJ8zEU5tuOBa/WKMAZg2F7k0pPNpq4OVM4fs6+oEHUXU1K7Kh6EG0+HD… (844 chars)"
  }
}