If you are using gtag.js - Google Tag Manager instead of google analytics script, please use the code below
airim('subscribe',function(event){
if(typeof(gtag)==='function'){
gtag('event', event.event_name,{
'event_category':'airim',
'event_label': event.event_value,
});
}
});
Event name is what type of action has been performed on the widget. Event value if any is the identification number on which the action is performed. Example: event_name = faq_click, and event_value = 39. Id of the FAQ which is clicked.
Sample Event
{
event_cat_id:108,// FAQ category id
event_message:"Clicked on Question: What is life?",