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# responseBodyV1

The response body containing JSON data that the App Store sends in a version 1 server notification.

```
object responseBodyV1
```

## Discussion

Use the information in the response body to react quickly to changes in your users’ subscription states. The fields available in a notification sent to your server depend on the [`notification_type`](/documentation/AppStoreServerNotifications/responseBodyV1/notification_type), which indicates the event that triggered the notification.

## Topics

### Unified receipt object

[`unified_receipt`](/documentation/AppStoreServerNotifications/unified_receipt)

An object that contains information about the most recent in-app purchase transactions for the app.


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