Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQBwOvyZUhWqYlB6WP4EgAizkv5gAVtRP1pxM62MnG+oVD3xvCS/I/VbwAij… (1,748 chars)"
  }
}