Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwE7LTG7/wWyBkvd451MfMAL6/w9U6t1KRbXQ+lTsOG8FyL4Q0EN5j9gp7uY… (844 chars)"
  }
}