curl --request POST \
  --url http://{defaultHost}/api/v2/platform/digital_links \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "digital_link": {
    "line_item_id": "1",
    "digital_id": "1",
    "access_counter": 0
  }
}
'

{
  "data": {
    "id": "5",
    "type": "digital_link",
    "attributes": {
      "token": "6bPn1uP9HWaYecdMFkFAkcc3",
      "access_counter": 0
    },
    "relationships": {
      "digital": {
        "data": {
          "id": "5",
          "type": "digital"
        }
      },
      "line_item": {
        "data": {
          "id": "13",
          "type": "line_item"
        }
      }
    }
  }
}