curl --request POST \
  --url https://sandbox-openplatform.keysecure.io/open-api/v1/cardholder/list \
  --header 'Content-Type: application/json' \
  --header 'Api-Key: your_api_key' \
  --header 'Timestamp: 1716307200000' \
  --header 'Access-Token: your_access_token' \
  --header 'Timezone: UTC+8' \
  --data '{
    "cardholder_no": "",
    "cardholder_unique_no": "",
    "start_time": "2026-01-01",
    "end_time": "2026-03-31",
    "page": 0,
    "size": 10
  }'

{
  "code": 0,
  "msg": "Success",
  "data": {
    "list": [
      {
        "cardholder_no": "",
        "cardholder_unique_no": "",
        "email": "",
        "fail_reason": "",
        "status": "",
        "time": 1716307200000
      }
    ]
  }
}