[standalone@localhost:9990 /] /subsystem=jca/workmanager=myWM:add(name=myWM, elytron-enabled=true
{"outcome" => "success"}
[standalone@localhost:9990 /] /subsystem=jca/workmanager=myWM:read-resource
{
    "outcome" => "success",
    "result" => {
        "elytron-enabled" => "myWM",
        "name" => "myWM",
        "long-running-threads" => undefined,
        "short-running-threads" => undefined
    }
}
[standalone@localhost:9990 /] /subsystem=jca/workmanager=myWM:read-attribute(name=elytron-enabled) 
{
    "outcome" => "success",
    "result" => "myWM"
}