emcli publish_event
        -target_name="Target name"
        -target_type="Target type internal name"
        -message="Message for the event"
        -severity="Severity level"
        -name="event name"
        [-key="sub component name"
         -context="name1=value1;name2=value2;.."
         -separator=context="alt. pair separator"
         -subseparator=context="alt. name-value separator"]

[ ] indicates that the parameter is optional