Sample Sandbox In-App Purchase Receipt that is expired.

receipt.json

{
  "status": 21006,
  "receipt": {
    "original_purchase_date_ms": "1335927991000",
    "original_purchase_date_pst": "2012-05-01 20:06:31 America\/Los_Angeles",
    "transaction_id": "1000000060958597",
    "quantity": "1",
    "bid": "kh.com.ctn.plus",
    "original_transaction_id": "1000000046496076",
    "unique_vendor_identifier": "1E8A3A6A-F455-4020-8194-7BC14991A00A",
    "bvrs": "1.0.0",
    "expires_date_formatted": "2012-05-03 07:09:59 Etc\/GMT",
    "expires_date": "1336028999000",
    "product_id": "kh.com.ctn.plus.iap.ars.months.01",
    "purchase_date": "2012-05-03 07:04:59 Etc\/GMT",
    "purchase_date_ms": "1336028699000",
    "item_id": "522272545",
    "expires_date_formatted_pst": "2012-05-03 00:09:59 America\/Los_Angeles",
    "purchase_date_pst": "2012-05-03 00:04:59 America\/Los_Angeles",
    "original_purchase_date": "2012-05-02 03:06:31 Etc\/GMT",
    "web_order_line_item_id": "1000000024529389",
    "unique_identifier": "428c98830faefa3b4e011d3e9ba3d48b1a57c28b"
  },
  "latest_expired_receipt_info": {
    "original_purchase_date_ms": "1335927991000",
    "original_purchase_date_pst": "2012-05-01 20:06:31 America\/Los_Angeles",
    "transaction_id": "1000000060959714",
    "quantity": "1",
    "bid": "kh.com.ctn.plus",
    "original_transaction_id": "1000000046496076",
    "bvrs": "1.0.0",
    "expires_date_formatted": "2012-12-26 17:18:26 Etc\/GMT",
    "purchase_date": "2012-12-26 17:03:26 Etc\/GMT",
    "expires_date": "1356542306000",
    "product_id": "kh.com.ctn.plus.iap.ars.months.03",
    "purchase_date_ms": "1356541406000",
    "expires_date_formatted_pst": "2012-12-26 09:18:26 America\/Los_Angeles",
    "purchase_date_pst": "2012-12-26 09:03:26 America\/Los_Angeles",
    "original_purchase_date": "2012-05-02 03:06:31 Etc\/GMT",
    "item_id": "522272546",
    "web_order_line_item_id": "1000000026503981",
    "unique_identifier": "b0102868"
  }
}

Thanks that helped a lot, I just hope this is still valid.