curl --request GET \
  --url https://api.hubapi.com/crm/v3/lists/records/{objectTypeId}/{recordId}/memberships \
  --header 'Authorization: Bearer <token>'

{
  "results": [
    {
      "firstAddedTimestamp": "2023-11-02T21:05:42.843Z",
      "lastAddedTimestamp": "2024-02-02T17:44:57.879Z",
      "listId": "23",
      "listVersion": 6
    },
    {
      "firstAddedTimestamp": "2023-11-07T10:26:31.161Z",
      "lastAddedTimestamp": "2023-11-07T10:26:31.161Z",
      "listId": "21",
      "listVersion": 3
    }
  ]
}