UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '/S/GdIfVDI8joPEY1olPddqWj6VShR46cajXuJduHIY=' 
WHERE 
  key_id = '840ad4be4d33cdf362b0f43cfa03e7f2e1f34872874934b102bb16437e97da90' 
  AND (
    token = '/S/GdIfVDI8joPEY1olPddqWj6VShR46cajXuJduHIY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )