curl --request GET \
  --url https://api.pathstack.io/milestone/{milestone_id}/update \
  --header 'Authorization: Bearer <token>'

{
  "data": {
    "milestone_id": "<string>",
    "connection_id": "<string>",
    "device_id": "<string>",
    "system_device_id": "<string>",
    "current_position": {
      "timestamp": "<string>",
      "longitude": 123,
      "latitude": 123,
      "heading": 123,
      "speed": {
        "speed_kph": 123
      },
      "driver_id": {
        "value": "<string>"
      }
    },
    "eta": "<string>",
    "distance_to_destination_km": 123,
    "last_updated_at": "2023-11-07T05:31:56Z"
  }
}