UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'nr63J2i3L/4q6j8k90EQ17dgSwODuXBAgjY+iCik6OY=' 
WHERE 
  key_id = '93a22ba9b3a859b7a3a77e9045aefce1bdc8381aada257f25be48475771735c3' 
  AND (
    token = 'nr63J2i3L/4q6j8k90EQ17dgSwODuXBAgjY+iCik6OY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )