Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFuHMfB6R6QZl67lpKEPE9sMDcSgxbHSxeHgW/7NHe9n1gLkctziI7TBhU2… (844 chars)"
  }
}