curl -i -X GET "https://api.box.com/2.0/folder_locks?folder_id=33552487093" \
     -H "authorization: Bearer <ACCESS_TOKEN>"

{
  "entries": [
    {
      "folder": {
        "id": "12345",
        "type": "folder",
        "etag": "1",
        "sequence_id": "3",
        "name": "Contracts"
      },
      "id": "12345678",
      "type": "folder_lock",
      "created_by": {
        "id": "11446498",
        "type": "user"
      },
      "created_at": "2020-09-14T23:12:53Z",
      "locked_operations": {
        "move": true,
        "delete": true
      },
      "lock_type": "freeze"
    }
  ],
  "limit": "1000",
  "next_marker": "JV9IRGZmieiBasejOG9yDCRNgd2ymoZIbjsxbJMjIs3kioVii"
}