Can not send complex string to webMethod

Hello!
Have try to send the complex string that is created(serilize) from data.
If I write just a regular string there is no problem but I want to send
over the array data as a string and then deserilize it does not work.

What happens is that the webmethod 'save' never start. No error occurs!

I suppose it is becouse the string contains a lot of  " but I dont know how
to change that and then bee able to deserilize it to the object.

The string 'strData':
"{'JSONString': '[{"Show":false,"SortOrder":"","QuestionText":"Ingen rapport lämnas till kund då följande muntliga rapport har lämnats:","DefaultValue":"","CSS":"","Note":"","RQID":"Label","FunctionNr":0},{"Show&q ...