curl --request GET \
  --url https://api.getmembrane.com/flow-runs/{id}/nodes/{nodeKey}/outputs/{outputId} \
  --header 'Authorization: Bearer <token>'

{
  "id": "<string>",
  "nodeKey": "<string>",
  "outputId": "<string>",
  "data": {},
  "metadata": {
    "timestamp": "<string>",
    "size": 123
  }
}