You can Add and Update Subscriptions in your network by issuing a
POST request to http://api.resengo.com/SUB/Subscription.
The SubscriptionIDs returned in the response should be saved in your database.
If possible, always use a SubscriptionID when updating a Subscription in the network.
If you do not have a SubscriptionID yet (because you are uploading the Subscription for the first time) and you are sending multiple Subscriptions at once, you can differentiate between the results by specifying a SMS_SubscriptionID or SMS_Subscription for each posted Subscription. These should correspond to the primary key of your local database.