var splitValues  = defaultFieldValues.split(",");
        var defaultFieldValuesNew = [];
        for (var i = 0; i < splitValues.length; i++) {
            // split each on :
            var fieldApiName = splitValues[i].split(":")[0].toString();
            var fieldValue = splitValues[i].split(":")[1].toString();
            var defaultFieldValue = { [fieldApiName]: fieldValue};
            console.log(defaultFieldValue);
            defaultFieldValues.push(defaultFieldValue);

        }
        createEvent.setParams({  "defaultFieldValues": defaultFieldValuesNew });