Checks for user key using json has instead of an explicit read and check

[apatruni]

Short description

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[sudheesh001]

This looks good. However I'd suggest a few changes before this can be merged.

Would it be possible to change the commit message to:
Checks for user key using json has instead of an explicit read and check

With the change in commit message, I think this can be approved.

Handing over the second review to @Orbiter