Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQB8N+KBeTL4IFPuvkPQPRLt4+91YXxdybiJxdiZnPDDHRp/X6WDrRs1/1X8… (1,748 chars)"
  }
}