Enrolling in App signing is a must when you want to upload your app bundle to Google Play Console. Follow the steps below to enroll in App signing by Google Play:

Step 1: Sign in to Google Play Console and select your app.

Step 2: In the side menu, navigate to Release > Setup > App integrity > Export and upload a key from Java keystore.

Step 3:  Click Upload private key and upload the jmango-pepk.pepk file we provide you, then click Save to proceed. 

Step 4: Accept the Google Play Terms of Service.