UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'DjbCRPdssiPVBo8zqQLaOwzTjoTd6d+6mSxi9sgBjrk=' 
WHERE 
  key_id = '50335861ba47b5d9aea6883815dfd13b2ac55f087b1d81dd27e229a5380ac81c' 
  AND (
    token = 'DjbCRPdssiPVBo8zqQLaOwzTjoTd6d+6mSxi9sgBjrk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )