JBoss CLI: add a nested element within an element without name attribute (adding "key" element inside "jwt") - jboss

Question

Generally speaking, I am trying to add a nested element inside another one, where the parent element does not contain a name attribute:
<parentElement name="fooName">
<foo property1="abc"/>
</parentElement>
should become:
<parentElement name="fooName">
<foo property1="abc">
<fooChild property2="bcd"/>
</foo>
</parent>
The problem with this is that I cannot find a way to properly build the path for the CLI command:
/sybsystem=xxx/parentElement=fooName/foo:add(fooChild={property2="bcd"})
gives me an error Node path format is wrong around 'foo' (index=37).
I assume this is because the foo element doesn't have an attribute name.
More specifically I am looking for a way to add key element inside the jwt element:
<token-realm name="jwt-realm" principal-claim="sub">
<jwt issuer="${JWT_ISSUER}" audience="${JWT_AUDIENCE}" public-key="${JWT_PUBLIC_KEY}"/>
</token-realm>
should become:
<token-realm name="jwt-realm" principal-claim="sub">
<jwt issuer="${JWT_ISSUER}" audience="${JWT_AUDIENCE}" public-key="${JWT_PUBLIC_KEY}">
<key kid="xxx" public-key="${JWT_PUBLIC_KEY}"/>
</jwt>
</token-realm>
The command I am trying to use:
/subsystem=elytron/token-realm=jwt-realm/jwt:add(key={kid="xxx",public-key="${JWT_PUBLIC_KEY}"})
and the error I get: Node path format is wrong around 'jwt' (index=41).

Answer 1

Thanks to my outstanding colleague (he hasn't got an account here, shame), the answer has been found.
To update the key's map the following command can be used:
/subsystem=elytron/token-realm=jwt-realm:write-attribute(name=jwt, ... ,key-map={"xxx","${JWT_PUBLIC_KEY}"}})
(... here the list of other standard attributes of the jwt element).