Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwECuBYa4M04fCn5Y8mLt7pORI/L7Mc9hUJ7xJqkDyz3GxpOczEAUJOZO5Zs… (844 chars)"
  }
}