如题，使用的证书是服务商的证书，请求的json里的belong_merchant和available_merchants，都是用服务商平台的特约商户的商户号

请求json

{

    "stock_name":"测试券",

    "belong_merchant":"签约商户号",

    "available_begin_time":"2020-08-12T21:27:48.000+08:00",

    "available_end_time":"2020-08-14T13:03:48.000+08:00",

    "stock_use_rule":{

        "max_coupons":100,

        "max_amount":10000,

        "max_coupons_per_user":1,

        "natural_person_limit":true,

        "prevent_api_abuse":true

    },

    "coupon_use_rule":{

        "coupon_available_time":{

            "fix_available_time":{

                "available_week_day":[0,1,2,3,4,5,6],

                 "begin_time":0,

              "end_time":3600

            },

            "second_day_available":false

        },

        "fixed_normal_coupon":{

            "coupon_amount":100,

            "transaction_minimum":100

        },

        "trade_type":["FACE","OTHER","CARD","PPAY"],

        "combine_use":false,

       "available_merchants":["签约商户号"]

    },

    "no_cash":true,

    "stock_type":"NORMAL",

    "out_request_no":"160103303620200812212642bL8ok27"

}

异常：