UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'T6+eXDamTIT1EtfFjCx2jShbk0mYQrGwt5eh0ma1/DU=' 
WHERE 
  key_id = '91fe1d0091b1d4989f959677c81f47355c6fd6dd077d37ba6f481b175c504674' 
  AND (
    token = 'T6+eXDamTIT1EtfFjCx2jShbk0mYQrGwt5eh0ma1/DU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )