curl --location --request POST 'https://api.kfim.cn/wallet_gate/unbind_card' \
--data-urlencode 'wallet_id=' \
--data-urlencode 'link_id=' \
--data-urlencode 'business_code=' \
--data-urlencode 'mch_num=' \
--data-urlencode 'timestamp=' \
--data-urlencode 'sign='
{
"code": 0,
"msg": "success",
"data": {
"wallet_id": "ae9d718ad126f9acef34d3ec32c39d43",
"link_id": "716908bf73924628b5337d677d4ed59a"
}
}