curl --request GET \
  --url https://api.topsort.com/public/v1/campaign-service/campaigns/{campaign-id}/restrictions \
  --header 'Authorization: Bearer <token>'

{
  "restrictions": [
    {
      "id": 123,
      "campaignId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "marketplaceId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "restrictionType": {
        "id": 123
      },
      "limit": 123,
      "createdAt": "2023-11-07T05:31:56Z",
      "updatedAt": "2023-11-07T05:31:56Z"
    }
  ]
}