Hello Venzi,
as Jochen said, it is possible to add some keys the JSON parser ignores. For instance you can add a key like "comment":
{
 "mainDiagnostics": {
   "0E0A0001": {
   "comment": "My first main diagnostic",    Â
     "text": "Successfully finished boot process",
     "version": 1,
     "detailedDiagnostics": {
       "00000001": {
         "comment": "My first detailed diagnostic",
         "text": "Finished boot process without errors",
         "version": 1
       }
     }
   }
 }
}
Best regards
Martin