'Create a new ClientValidationJwt
:param str account_sid: A Twilio Account Sid starting with \'AC\'
:param str api_key_sid: A Twilio API Key Sid starting with \'SK\'
:param str credential_sid: A Credential Sid starting with \'CR\',
public key Twilio will use to verify the JWT.
:param str private_key: The private key used to sign the JWT.
:param ValidationPayload validation_payload: information from the request to sign'

def __init__(self, account_sid, api_key_sid, credential_sid, private_key, validation_payload):

    super(ClientValidationJwt, self).__init__(secret_key=private_key, issuer=api_key_sid, subject=account_sid, algorithm='RS256', ttl=300)
    self.credential_sid = credential_sid
    self.validation_payload = validation_payload
