Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwGiLhQVKSiR7/Ek7eLXLxGGCS0H6P6gM7k8HzwWKp6cJXjN/qo6DhzC01l9… (844 chars)"
  }
}