UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'qI/mePMn29t9FN7WElfIgCSIPzMWwtG3EqxqIDVTkpY=' 
WHERE 
  key_id = '15b81d489c9331e236ee14f271d0e4300eb0ba4751e76d90707c8098d8f09ac0' 
  AND (
    token = 'qI/mePMn29t9FN7WElfIgCSIPzMWwtG3EqxqIDVTkpY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )