UpdateCustomerRequest

{
    "phone_number": "string",
    "email": "user@example.com",
    "first_name": "string",
    "last_name": "string",
    "gender": 0,
    "external_id": "string",
    "customer_discount_id": "19a13e6f-e7b9-4388-8c2b-b53e4048e42a"
}