Create customer

{
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "type": "<string>",
  "first_name": "<string>",
  "last_name": "<string>",
  "email": "<string>",
  "phone": "<string>",
  "date_of_birth": "<string>",
  "nationality": "<string>",
  "address": {
    "street": "<string>",
    "city": "<string>",
    "postal_code": "<string>",
    "country": "<string>"
  },
  "kyc_status": "<string>",
  "verification_level": "<string>",
  "metadata": {},
  "created_at": "2023-11-07T05:31:56Z",
  "updated_at": "2023-11-07T05:31:56Z"
}