{
    "openid": "odkx20ENSNa2w5y3g_qOkOvBNM1g",
    "appid": "wx1234567",
    "offer_id": "12345678",
    "ts": 1507530737,
    "zone_id": "1",
    "pf": "android",
    "bill_no": "BillNo_123",
    "sig": "8bd582a6b06e38a1346fc335ebcb11c8990241bbe23118eb3d22f0ef42870a6a"
}