Export the Mendix entity to JSON

Hi All,

I have the convert the Mendix entity data to JSON file. Can you please help as Export mapping only uses Flat JSON structure. Below my JSON structure.

{"imt-mnenomic":[
      {"code":"","name":"","type":"","4s-sbl-client":[
            {"entity":"","code":""
            }
         ],"mics-outright-client":[
            {"account-number":0
            }
         ]
      }
   ]
}

PS: i dont want to create the webservice, just JSON file creation is the target