Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwF8GVbvpfXTa3OgjS/7d0tO2/cXbbTot+ipN8cZGxP+OVHRioeG/2xpz9c+… (844 chars)"
  }
}