JSFiddle - React, Tailwind, and code Playground

JavaScript

var LeadserData = {
	agent_id: 0,
	
	object_queries: {
		
	    emails: {
	    	url: "/manual_emails/",
	    	method: 'GET',
			send_data: { 
				"request" :
						   { 
							"query" :				
								{ 
									"agent_id": this.agent_id
							 	}
					  		} 
				}   	
	    }
	    
    }
    
}

LeadserData.agent_id = 1;
alert(LeadserData.agent_id);
alert(LeadserData.object_queries.send_data);