curl --request GET \
  --url https://api.example.com/downloads/{id}

{
  "id": "<string>",
  "key": "<string>",
  "status": "<string>",
  "update": {
    "exportTargetId": "<string>",
    "key": {
      "artifactId": "<string>",
      "execution": {
        "domain": "<string>",
        "name": "<string>",
        "project": "<string>"
      }
    },
    "progress": 123,
    "tags": {},
    "type": "<string>",
    "uri": "<string>"
  }
}