curl not working to update confluence calender and showing null event error

[Mrinmay_Biswas]

Calender event is getting update using python request and response but CURL can not able to do so using groovy

Python scripts which is working- 

import requests
import json
baseURL = 'https://confluence.mycomp.com/rest/calendar-services/1.0/calendar/events.json'
headers = { "content-type" : "application/x-www-form-urlencoded" }
user='****'
password='****'
hd={'Content-Type': 'application/json'}
calenderData = {"subCalendarId":"7ed3840a-*******-","eventType":"Events", "what":"CTEF1 Test Deployment", "person": ["*********"],"startDate":"28-Apr-2020","endDate": "28-Apr-2020","allDayEvent": "true","where": "By DVM PipeLine" }
response = requests.put(baseURL, headers=headers, auth=(user, password), data=calenderData, timeout=15)
print('\n\n\n')
print(response.content)

Groovy curls which is not working :-( It is showing null event)

baseURL = 'https://confluence.mycomp.com/rest/calendar-services/1.0/calendar/events.json'

user='****'
password='****'

calenderData = {"subCalendarId":"7ed3840a-6e3e-4043-******","eventType":"Events", "what":"CTEF1 Test Deployment", "person": ["********"],"startDate":"28-Apr-2020","endDate": "28-Apr-2020","allDayEvent": "true","where": "By DVM PipeLine" }

def response = ["curl", "-k", "-u", "user:passwords", "-X", "PUT", "-d", "${calenderData}", "-H", "Content-Type:application/json", "${baseURL}"].execute().text