Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwKqnHZ+/gPciMaKYUzJ8ODdM6KcPMFrdW/9PUP1AuKyI00RI1RvuLKeB/vv… (844 chars)"
  }
}