Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwE8HGzKo5RvdCAWsGunNZpSicUcSi+D1DLZnVpNq6iy7UBg9fXS/LcX5cHM… (844 chars)"
  }
}