Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwC5qnFNCyGBh1Y6CiBRyL0EwH9+loPsRyBFEZsgbcQa2BZ+3K9vXEm7mYB6… (844 chars)"
  }
}