UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'swZuieBo+UnvZlpwfhxjO7NnFPC2EmxIY8k/CKDcqiY=' 
WHERE 
  key_id = '476aaf8549929b958d0136cf3c1802e1b15262bb74c043ba270c0cd6feb3d0b0' 
  AND (
    token = 'swZuieBo+UnvZlpwfhxjO7NnFPC2EmxIY8k/CKDcqiY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )