Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQB32BjsAg9Vq5BIzojn0zLJAGHRHYcOBocBzyE5Y9EDTBsQz7+x6S+6QS2T… (1,748 chars)"
  }
}