curl --location --request POST 'https://api.kfim.cn/wallet_gate/wallet_contract_sign_query' \
--data-urlencode 'wallet_id=73ceaf56cb4272e123485dcfc4360089' \
--data-urlencode 'business_code=' \
--data-urlencode 'mch_num=' \
--data-urlencode 'timestamp=' \
--data-urlencode 'sign='
{
"code": 0,
"msg": "success",
"data": {
"wallet_id": "73ceaf56cb4272eff7985dcfc4360089",
"apply_status": 4,
"contract_sn": "HT10025072600134677",
"sign_url": "https://eqt.ysepay.com/m/sign/b85aea402e7649eaab3cd9ef6c089245",
"sign_url_expiration_time": "2025-07-26 17:41:08"
}
}