UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'U/YNkxpCyQ+fCXL8FObYYKStGNLPXXQg6+BDPby/cIc=' 
WHERE 
  key_id = '88ee35b7fe6e84925d02921326c45f9986b6fbca0d1d432500c3e122ed2b73c1' 
  AND (
    token = 'U/YNkxpCyQ+fCXL8FObYYKStGNLPXXQg6+BDPby/cIc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )