refs https://github.com/TryGhost/Toolbox/issues/292
- This information is needed for the emails used to notify the instance admins about version mismatch.
- The identification information is different for Content and Admin keys because of their nature. Content API keys send the unique "secret" value in plaintext, Admin API keys send key id (kid) as a part of token payload and that's the easiest accessible information available without a need to query the db in another parts of the system.
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