List all customers

[
  {
    "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"
  }
]