curl --request GET \
  --url https://api.shoppex.io/dev/v1/customers/{id} \
  --header 'Authorization: Bearer <token>'

{
  "data": {
    "id": "<string>",
    "shop_id": "<string>",
    "email": "<string>",
    "name": "<string>",
    "surname": "<string>",
    "phone": "<string>",
    "phone_country_code": "<string>",
    "country_code": "<string>",
    "street_address": "<string>",
    "additional_address_info": "<string>",
    "city": "<string>",
    "postal_code": "<string>",
    "state": "<string>",
    "affiliate_revenue": 123,
    "affiliate_revenue_currency": "<string>",
    "affiliate_revenue_percent": 123,
    "customer_balance": 123,
    "customer_balance_currency": "<string>",
    "created_at": 123,
    "invoices": [
      {
        "uniqid": "<string>",
        "gateway": "<string>",
        "total": 123,
        "status": "<string>",
        "created_at": 123
      }
    ],
    "subscriptions": [
      {
        "id": "<string>",
        "status": "ACTIVE",
        "gateway": "<string>",
        "current_period_end": "<string>",
        "canceled_at": "<string>",
        "created_at": "<string>"
      }
    ]
  }
}