Couldn't download universal data with API

I have been set the right value for $CENSYS_API_ID and $CENSYS_API_SECRET

However, the server sends me “error message” so I seek for help to download data with my api.

curl -X "GET" "https://search.censys.io/api/v1/data/universal-internet-dataset-v2-ipv4" -H "Accept: application/json" --user "$CENSYS_API_ID:$CENSYS_API_SECRET"

{"status": "error", "error": "This server could not verify that you are authorized to access the document you requested.  Either you supplied the wrong credentials (e.g., bad password), or your browser does not understand how to supply the credentials required.", "error_type": "unknown"}