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# signedPayload

The payload in a JSON Web Signature (JWS) format, signed by the App Store.

```
string signedPayload
```

## Discussion

The signed payload is a property of [`RealtimeRequestBody`](/documentation/RetentionMessaging/RealtimeRequestBody). The App Store server sends this request to your `Get Retention Message` endpoint.

For information about parsing the signed payload and validating the signature, see [Responding to real-time retention messaging requests](/documentation/RetentionMessaging/responding-to-realtime-retention-messaging-requests).

---

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