curl --request GET \
  --url https://api.steppay.kr/api/v1/vendors/{vendorUuid}/children \
  --header 'Secret-Token: <api-key>'

{
  "name": "<string>",
  "uuid": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "surveyed": true,
  "managerUsername": "<string>",
  "createdAt": "2023-11-07T05:31:56Z",
  "enabled": true,
  "realmKeycloakId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "realmName": "<string>",
  "managerPhone": "<string>"
}