UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '//srkXKl2xnJX+C4E386nmtWlsC5YbFy5fKTKEblJTU=' 
WHERE 
  key_id = '6c3301e1c836eb552ab91c17f38e487fb422fae7643cd379ff2e6644e7cb32ea' 
  AND (
    token = '//srkXKl2xnJX+C4E386nmtWlsC5YbFy5fKTKEblJTU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )