signedDate
The UNIX time, in milliseconds, that the App Store signed the JSON Web Signature data.
Declaration
timestamp signedDateDiscussion
This timestamp indicates the time the system signs the data before it sends the notification to your server. The notification payload contains a snapshot of the state of the transaction at this time.
This timestamp remains the same if the system resends the notification during a retry. For more information about retries, see Responding to App Store Server Notifications.
If you process multiple notifications for the same transaction ID, use the notification with the most recent signedDate, because it contains the most recent snapshot of the transaction’s status.