{
    "openid": "odkx20ENSNa2w5y3g_qOkOvBNM1g",
    "appid": "wx1234567",
    "offer_id": "12345678",
    "ts": 1507530737,
    "zone_id": "1",
    "pf": "android",
    "present_counts": 233,
    "bill_no": "BillNo_123",
    "sig": "e53e5241bbb014b3a9fcc221d66fecab8734b53fe94d7a8c65180e175e29f443"
}