Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQA/IvznTPdGbIYVTa6DEuXFa9e1+S5x4pOgZXMkZycc5DKSKiPJic+X84o8… (1,748 chars)"
  }
}