Splitting subject and message content under message groovy script

Hi Team,

I created below groovy script to send the email notifications for message. However, I am not able to split the subject and message content. I created map.put for subject and message text separately. However, the message content is displayed as subject.

Expected Subject: Updates in Helpdesk Request

Display: Dear Employee

def subject = "Updates in Helpdesk Request " + HRHelpDeskRequest?.SrNumber;

def messageContent = "Dear Employee,";

def messageContent1 = "\nYour Helpdesk Request-" + HRHelpDeskRequest?.SrNumber + " - " + HRHelpDeskRequest?.Title +" has been updated.";


map.put("Subject", subject);

map.put("MessageText", messageContent + "\n" + messageContent1);

Thanks.