Accidentaly, I deleted a note of Knote. I guess the notes were stored in "~/.local/share/notes/" , with a file ".site" each note. I tried to recover the files from my home folder (ext4) using ext4magic and extundelete, just after I noticed my error, but I didn't get any file with "Subject:" among the few files deleted in the time frame range when I deleted the note.
Is there any way to recover my delete note?

Thank you