How can we add new custom tags in the JSON object?

Summary

How can we add new custom tags in the JSON object?

Content

Dear All,

Basically, while communicating with an external web application, i would like to send out commands to it as a custom new tag in the JSON object along with the 'text' and 'type'(as we see in system.out component) 

So, Is there any option to add new tags to the JSON object ? Kindly help.

 

Warm Regards,

Ravishankar.R