UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'McmIoGbq8hG50Nl+prZOqaUmlUB7sirvNYYB2QYMyAc=' 
WHERE 
  key_id = '68b6ccb6cc76dd46bcae3a325f81c54ac6d928115eb47b87d9078bd0232ae654' 
  AND (
    token = 'McmIoGbq8hG50Nl+prZOqaUmlUB7sirvNYYB2QYMyAc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )