Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHVLdZ2JH5CZzX9Zw0WJoq0OmkE0exmJxtjCEbN6VqxoDRNb7RXO6BFHWn/… (844 chars)"
  }
}