This is either a device running an old version of iOS or, more likely, a hack attempt using an old receipt.
Here is what an old receipt looked like:
{"status":0, "environment":"Sandbox",
"receipt":{"receipt_type":"ProductionSandbox", "adam_id":0, "bundle_id":"com.kramerandkramerXXXXXX", "application_version":"1.0", "download_id":0, "request_date":"2014-01-04 22:09:48 Etc/GMT", "request_date_ms":"1388873388018", "request_date_pst":"2014-01-04 14:09:48 America/Los_Angeles",
"in_app":[
{"quantity":"1", "product_id":"com.kramerandkramersoftware.XXXXXXXXXX", "transaction_id":"1000000097744614", "original_transaction_id":"1000000097744614", "purchase_date":"2014-01-04 22:09:47 Etc/GMT", "purchase_date_ms":"1388873387000", "purchase_date_pst":"2014-01-04 14:09:47 America/Los_Angeles", "original_purchase_date":"2014-01-04 22:09:46 Etc/GMT", "original_purchase_date_ms":"1388873386000", "original_purchase_date_pst":"2014-01-04 14:09:46 America/Los_Angeles", "is_trial_period":"false"}]}} /n/n {
environment = Sandbox;
receipt = {
"adam_id" = 0;
"application_version" = "1.0";
"bundle_id" = "com.kramerandkramerXXXXXXXX";
"download_id" = 0;
"in_app" = (
{
"is_trial_period" = false;
"original_purchase_date" = "2014-01-04 22:09:46 Etc/GMT";
"original_purchase_date_ms" = 1388873386000;
"original_purchase_date_pst" = "2014-01-04 14:09:46 America/Los_Angeles";
"original_transaction_id" = 1000000097744614;
"product_id" = "com.kramerandkramersoftwareXXXXXXXXXX";
"purchase_date" = "2014-01-04 22:09:47 Etc/GMT";
"purchase_date_ms" = 1388873387000;
"purchase_date_pst" = "2014-01-04 14:09:47 America/Los_Angeles";
quantity = 1;
"transaction_id" = 1000000097744614;
}
);
"receipt_type" = ProductionSandbox;
"request_date" = "2014-01-04 22:09:48 Etc/GMT";
"request_date_ms" = 1388873388018;
"request_date_pst" = "2014-01-04 14:09:48 America/Los_Angeles";
};
status = 0;
}