import json
import requests
data = {
  "TitleId": 4,
  "AuthMethod": "UberCredentials",
  "UberName": "your",
  "Password": "credentials"
}

r = requests.post('https://4.uberent.com/GC/Authenticate',data=json.dumps(data))
uResponse = json.loads(r.content.decode())


ubername = 'someName'

h = {'X-Authorization':uResponse['SessionTicket']}
r = requests.get('https://4.uberent.com/GameClient/UserId',data = {'UberName':ubername},headers=h)
z = r.content.decode()
print(z)