UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Fvk+of5ZYoZ2Yw8g2Mjdl6OrlI8oSod8HFUd2mWXvuo=' 
WHERE 
  key_id = 'bae73877304d1404f8f4192f055e0678ee181908251fbb431f85ba33117dbcbf' 
  AND (
    token = 'Fvk+of5ZYoZ2Yw8g2Mjdl6OrlI8oSod8HFUd2mWXvuo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00031