UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '9f3oVeXoQP4MZblkaRei7oqHw+lYBa6sye8y3b0ifoI=' 
WHERE 
  key_id = '3321ef0973126f3ad340e969edced92a7ed321e8460c520ff843bc38b1604aa1' 
  AND (
    token = '9f3oVeXoQP4MZblkaRei7oqHw+lYBa6sye8y3b0ifoI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )