Attach a contact

$ curl https://api.intercom.io/contacts/<id>/subscriptions \
-X POST \
-H 'Authorization:Bearer <Your access token>' \
-H 'Accept:application/json' \
-H 'Content-Type: application/json' -d

{
  "id": "1",
  "consent_type": "opt_out"
}

HTTP/1.1 200 OK
{
  "type": "subscription",
  "id": "1",
  "state": "live",
  "default_translation": {
    "name": "Announcements",
    "description": "Offers, product and feature announcements",
    "locale": "en"
  },
  "translations": [
    {
      "name": "Ankündigungen",
      "description": "Angebote, Produkt- und Funktionsankündigungen",
      "locale": "de"
    },
    {
      "name": "Announcements",
      "description": "Offers, product and feature announcements",
      "locale": "en"
    }
  ]
  "consent_type": "opt_out"
}

HTTP/1.1 404 NOT FOUND
{
  "type": "error.list",
  "request_id": "9a3d0816-9707-4598-977e-c009ba630148",
  "errors": [
    {
      "code": "not_found",
      "message": "User Not Found"
    }
  ]
}

HTTP/1.1 404 NOT FOUND
{
  "type": "error.list",
  "request_id": "060932ab-ab9d-4f89-88f3-d0152d005873",
  "errors": [
    {
      "code": "not_found",
      "message": "Resource Not Found"
    }
  ]
}