UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'dxQzEUiO2y7Zn5eF92dhilPv69wtqTjrsBdEmVSEgdM=' 
WHERE 
  key_id = '1679c6135df8b21663cbdba306758b7ab424cc2d789fc25a8642df0e29c1508e' 
  AND (
    token = 'dxQzEUiO2y7Zn5eF92dhilPv69wtqTjrsBdEmVSEgdM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )