UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'nIGxTwlaoP+sl15FSqGMk+KsiEyGSlilljcVbdGKd+s=' 
WHERE 
  key_id = '91da70690da5b1b31a9db5a5d92210278c29a2834c8157e024cb6404111adc0b' 
  AND (
    token = 'nIGxTwlaoP+sl15FSqGMk+KsiEyGSlilljcVbdGKd+s=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )