Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwCWHHfM0Qbzt30BmuYpGSCDNOipv8L0a3fNCpbzhd6MK0l7+NRmZsD5OHHr… (844 chars)"
  }
}