Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGBKCdD8aVVk/kIYX5tGcHG17NmsS6v/FxFFxvNt1hCFwKIVz8Hl6ByZYqi… (844 chars)"
  }
}