Download the latest package from here.
Visit your Office 365 SharePoint Admin Center.
Go to More Features > Apps
Click “App Catalog.”
Click on the Apps for SharePoint link in the quick launch.
Click Upload and select the sppkg file.
Check the box for Make this solution available to all sites in the organization and click the Deploy button.
The web part will now be available once editing a page.
Create a blank site page.
Add the 4Mata web part to a single column section.
Edit the web part properties and add your subscription number.