Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwKtMHgvsvHQbQpM0LIwwVZKiUvtEq2pQi69Ook/jqTI4l2NBfDDj/x4kkN/… (844 chars)"
  }
}