curl --request GET \
  --url https://productlane.com/api/v2/contacts/{id} \
  --header 'Authorization: Bearer <token>'

{
  "id": "<string>",
  "email": "<string>",
  "name": "<string>",
  "image_url": "<string>",
  "company_id": "<string>",
  "is_subscribed": true,
  "external_ids": {
    "intercom": "<string>",
    "front": "<string>",
    "zendesk": "<string>",
    "hubspot": "<string>",
    "plain": "<string>",
    "productboard": "<string>",
    "slack_channel": "<string>"
  },
  "created_at": "<string>",
  "updated_at": "<string>"
}