UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Hgylow+KDtezq+Ts60cHqDu50atiC1QdHSzakW31S4o=' 
WHERE 
  key_id = '1687a89b40984781b762ebbd3591ce280c37fba72131f70b890cd9d903e1d6e1' 
  AND (
    token = 'Hgylow+KDtezq+Ts60cHqDu50atiC1QdHSzakW31S4o=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )