Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwDt1onf4W6V+Qmz1C0XaA2GiQri9yrJ7phBDV/tJ/4GinPBf3E3Oz8Xm1jD… (844 chars)"
  }
}