curl --request POST \
  --url https://cloudapi.mailercloud.com/v1/campaign/{id}/unsubs \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: <content-type>' \
  --data '
{
  "page": 1,
  "limit": 25
}
'

{
  "campaign": {
    "name": "May newsletter",
    "subject_line": "Big update inside",
    "created_date": "2026-05-10 11:30:00"
  },
  "data": [
    {
      "contact_id": "SuwESEuwZZ",
      "email": "alice@example.com",
      "first_name": "Alice",
      "last_name": "Anderson",
      "tags": [
        "VIP"
      ],
      "lists": "SuSwZS",
      "list_name": "Newsletter Subscribers",
      "created_date": "2026-05-15 09:24:11",
      "reason": "no longer interested"
    },
    {
      "contact_id": "SuwESEuHaa",
      "email": "bob@example.com",
      "first_name": "Bob",
      "last_name": "",
      "tags": [],
      "lists": "no lists",
      "list_name": "no lists",
      "created_date": "2026-05-15 11:02:47",
      "reason": "Abuse"
    }
  ],
  "total": 42
}