Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQCupwUjXN48ZPdN9+ZfVxOuO4/ZG5SXBWlP3DyUiB9B3hRO2pERDKb70siJ… (1,748 chars)"
  }
}