Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwGzSmWIFgd4z4JDPMJf9+X0TWqOCt1JHnSAEzBMR9Zn11oJSPEZx5GmzXJF… (844 chars)"
  }
}