curl --request POST \
  --url https://api.hubapi.com/crm/v3/objects/line_items/search \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "query": "",
  "limit": 123,
  "after": "",
  "sorts": "",
  "properties": "",
  "filterGroups": ""
}'

{
  "total": 123,
  "results": [
    {
      "archived": false,
      "createdAt": "2019-10-30T03:30:17.883Z",
      "id": "512",
      "properties": {
        "property_checkbox": "false",
        "property_date": "1572480000000",
        "property_dropdown": "choice_b",
        "property_multiple_checkboxes": "chocolate;strawberry",
        "property_number": "17",
        "property_radio": "option_1",
        "property_string": "value"
      },
      "updatedAt": "2019-12-07T16:50:06.678Z"
    }
  ],
  "paging": {
    "next": {
      "after": "NTI1Cg%3D%3D",
      "link": "?after=NTI1Cg%3D%3D"
    },
    "prev": {
      "before": "",
      "link": ""
    }
  }
}