Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHRUv++bAhUljWqULeXxkuJvw/mh6lANgEzq8B+eKCzinO6R+9W8+NF74YE… (844 chars)"
  }
}