@Maria Diana Thanks for the additional details.
All of the tayganr/purviewcli: Microsoft Purview CLI (github.com) are NOT powershell, it is its own shell command.
Video: Could you please try Visual Studio Code instead of Powershell as demonstrated in this video: CLI wrapper to Microsoft Purview APIs (purviewcli)
You should just call
pv entity read --guid 'abc-123' and it will pull the content down in json.
If you would like to explore Powershell cmdlet, it's a different pacakge: Azure/Azure-Purview-API-PowerShell (github.com)
Hope this info helps. Let us know how it goes.
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