embed-server --server-config=standalone-ha.xml --std-out=echo
/subsystem=logging/json-formatter=JSON/:add
/subsystem=logging/console-handler=CONSOLE/:write-attribute(name=named-formatter,value=JSON)
stop-embedded-server

--log-format <format>
                     The format of log entries. If the format has spaces in it, you need to escape
                       the value such as "<format>". Default: %d{yyyy-MM-dd HH:mm:ss,SSS} %-5p [%c]
                       (%t) %s%e%n.
--log-level <category:level>
                     The log level of the root category or a comma-separated list of individual
                       categories and their levels. For the root category, you don't need to
                       specify a category. Default: info.

log-format={"time":"%d{yyyy-MM-dd HH:mm:ss,SSS}", "category":"%c", "thread-name":"%t", "thread-id":"%t{id}", "process-id":"%i", "message":"%m", "exception":"%e"}%n

type=CLIENT_LOGIN, realmId=XYZ, clientId=CLIENTID, userId=USERID, ipAddress=X.X.X.X, token_id=TOKENID, grant_type=client_credentials, scope='email profile', client_auth_method=client-secret, username=USERNAME, authSessionParentId=PARENTID, authSessionTabId=TABID

{
	"type": "CLIENT_LOGIN",
	"realmId": "XYZ",
	"clientId": "CLIENTID",
	"userId": "UERID",
	"ipAddress": "X.X.X.X",
	"token_id": "TOKENID",
	"grant_type": "client_credentials",
	"scope": "'email profile'",
	"client_auth_method": "client-secret",
	"username": "USERNAME",
	"authSessionParentId": "PARENTID",
	"authSessionTabId": "TABID"
}