Combining Fields and additional text based on Field Value

I have the following Fields

Template Type (options are either TEXT Only or With Weblink)

Title Line

Copy

Name of Link

URL

When user selects Template Type Text Only, I need a field that will display the full text and contents:

{"iconName":"safety","text":"Copy","title":"Title Line"}

When a user selects Template Type With Weblink, I need a field that will display the full text and contents:

{"title":"Title Line","text":"Copy","externalURLdisplayName":"Name of Link","externalURL":"URL","iconName":"safety"}