curl --request GET \
  --url https://api.stackone.com/unified/crm/contacts/{id} \
  --header 'Authorization: Basic <encoded-value>' \
  --header 'x-account-id: <x-account-id>'

{
  "data": {
    "id": "8187e5da-dc77-475e-9949-af0f1fa4e4e3",
    "remote_id": "8187e5da-dc77-475e-9949-af0f1fa4e4e3",
    "unified_custom_fields": {
      "my_project_custom_field_1": "REF-1236",
      "my_project_custom_field_2": "some other value"
    },
    "first_name": "Steve",
    "last_name": "Wozniak",
    "company_name": "Apple Inc.",
    "emails": [
      "[email protected]"
    ],
    "phone_numbers": [
      "123-456-7890"
    ],
    "deal_ids": [
      "deal-001",
      "deal-002"
    ],
    "remote_deal_ids": [
      "e3cb75bf-aa84-466e-a6c1-b8322b257a48",
      "e3cb75bf-aa84-466e-a6c1-b8322b257a49"
    ],
    "account_ids": [
      "account-123",
      "account-456"
    ],
    "remote_account_ids": [
      "e3cb75bf-aa84-466e-a6c1-b8322b257a48",
      "e3cb75bf-aa84-466e-a6c1-b8322b257a49"
    ],
    "custom_fields": [
      {
        "id": "8187e5da-dc77-475e-9949-af0f1fa4e4e3",
        "remote_id": "8187e5da-dc77-475e-9949-af0f1fa4e4e3",
        "name": "Training Completion Status",
        "value": "Completed",
        "value_id": "value_456",
        "remote_value_id": "e3cb75bf-aa84-466e-a6c1-b8322b257a48"
      }
    ],
    "created_at": "2021-01-01T01:01:01.000Z",
    "updated_at": "2021-01-01T01:01:01.000Z"
  },
  "raw": [
    {
      "method": "<string>",
      "url": "<string>",
      "body": "<string>",
      "response": {}
    }
  ]
}