Include Data In A Response/Reply From A Primefaces Push - jsf

Question

Is there a way to include data from the front-end to send to the back end, perhaps in the reply.completed argument, such that if a condition was not met, the front end can inform the backend of the status and the backend and do something with that data? And if so, how?
From the back-end:
Reply reply = new Reply() {
#Override
public void completed(String arg0) {
System.out.println("Reply received: " + arg0);
}
};
summary = this.getText("report.ready.view").replace("{0}", reportName);
reportLink = this.getExternalContextRoot() + reportLink + (!reportLink.contains("?") ? "?reportId=" : "&reportId=") + savedReportStatus.getSavedReportStatusId();
detail = "<a href='" + reportLink + "'>" + this.getText("click.to.view") + "</a>";
facesMessage = new FacesMessage(severity, summary, detail);
eventBus.publish(channel, facesMessage, reply);
From the front-end:
<p:socket onMessage="handleMessage" channel="/reports/#{userSessionBean.userID}" autoConnect="true"/>
<script type="text/javascript">
function handleMessage(message) {
if (DO SOME CHECK) {
if (message.severity == 'INFO 0') {
message.severity = 'info';
} else if (message.severity == 'WARN 1') {
message.severity = 'warn';
} else if (message.severity == 'ERROR 2') {
message.severity = 'error';
} else if (message.severity == 'FATAL 3') {
message.severity = 'fatal';
}
PF('reportsGrowl').show([message]);
updateViewedReports();
} else {
SEND THE BACK-END INFORMATION INDICATING THE CHECK FAILED AND THE MESSAGE WAS NOT SHOWN
}
}
$(document).ready(function () {
updateViewedReports();
});
</script>