How to add Structured data on Enfold without a plugin

Hello,
1 – I add my script json in header.php just before </head> on my site : vernissageduvar.com
Everything is OK with the google testing tool of structured data but i can’t see my strucutured data in the Google search console..Why?

2- Whats is the difference by making this : https://kriesi.at/support/topic/structured-data-html/#post-758419 or ading the script in header.php?

Thanks!