Почему выдает ошибку 400?

Question

[Mr.Robot]

Выдает ошибку 400

import http.client
import urllib.parse

headers = {
    "accept": "application/json",
    "accept-encoding": "gzip, deflate, br",
    "Connection": "keep-alive",
    "content-type": "application/json",
    "Host": "lds-api-sites.ligastavok.ru",
    "Origin": "https://www.ligastavok.ru",
    "Referer": "https://www.ligastavok.ru/",
    "Sec-Fetch-Dest": "empty",
    "User-Agent": "Chrome/97.0.4692.71 Safari/537.36",

}

params = urllib.parse.urlencode(
    {"limit": 10, "ns": "live", "view": "sport", "widgetVideo": False, "exceptEventIds": []}
)

conn = http.client.HTTPConnection("lds-api-sites.ligastavok.ru",443)
conn.request("POST", "/rest/events/v6/actionLines", body=params, headers=headers)
response = conn.getresponse()
print(response.status, response.reason)

data = response.read()
print(data)

conn.close()