---
title: nonce
framework: storekit
role: symbol
role_heading: Instance Property
path: storekit/product/subscriptionoffer/signature/nonce
---

# nonce

A one-time UUID your server generates for the promotional offer.

## Declaration

```swift
var nonce: UUID
```

## See Also

### Getting signature elements

- [keyID](storekit/product/subscriptionoffer/signature/keyid.md)
- [signature](storekit/product/subscriptionoffer/signature/signature.md)
- [timestamp](storekit/product/subscriptionoffer/signature/timestamp.md)