{
"deviceId": 0,
"merchantId": 0,
"longitude": "string",
"latitude": "string",
"iotCardType": 0
}curl --location 'http://gateway249.kiwismart.top/app/merchant/iotCard/exist' \
--header 'Content-Type: application/json' \
--data '{
"deviceId": 0,
"merchantId": 0,
"longitude": "string",
"latitude": "string",
"iotCardType": 0
}'{
"code": 0,
"msg": "",
"data": false
}