curl --request POST \
  --url https://api.example.com/sub-accounts \
  --header 'Content-Type: application/json' \
  --data '
{
  "email": "example@gmail.com"
}
'

{
  "success": true,
  "message": "Sub-account created successfully",
  "data": {
    "reference": "rp1xwfiohwxr9gp",
    "email": "example@gmail.com",
    "status": "pending",
    "createdAt": "2026-03-20T13:36:18Z"
  },
  "meta": {
    "timestamp": "2026-03-25T07:09:06Z"
  }
}