:: JSON data can also be passed as a path to a .json file

oint bitrix24 UpdateCalendarEvent ^
  --url "b24-ar17wx.bitrix24.by" ^
  --event 4684 ^
  --fields "{'ownerId':'1','type':'user','name':'Modified event','description':'New event description','importance':'low','private_event':'Y'}" ^
  --token "***"