BigSur CA Cert Trust authorization

Hi, Since the BigSur CA cert trust setting requires one of the following: (from the authorization.plist settings)

Code Block                 
<key>com.apple.trust-settings.admin</key>
<string>For modifying Trust Settings in the Admin domain. Requires entitlement or admin authentication.</string>
<key>rule</key>
<array>
<string>entitled</string>
<string>authenticate-admin</string>
</array>
</dict>

Is there any documentation for this entitlement ? I've added the following entitlement, code-signed, and notarized.

Code Block 
<key>com.apple.private.AuthorizationServices</key>
<array>
<string>com.apple.trust-settings.admin</string>
</array>

But the runtime kills the service (launched via launchd) with SIGKILL. Looking for some guidance.

Thank you
Siva