UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ewd5Ln6C4Ze574Ggsme6hlBMWK67czSyw+Hi9n/r738=' 
WHERE 
  key_id = '839ff158eb5967f1431a4ae6ad8b8b545d1760697919b8659013e168e050fbdf' 
  AND (
    token = 'ewd5Ln6C4Ze574Ggsme6hlBMWK67czSyw+Hi9n/r738=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )