UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'jGWOpgA+OiIYg07ApZW6vVYOI6tGMY4h8tRBuq0pfMA=' 
WHERE 
  key_id = '974632d44ac793ee69168f559b990a8053925b705a80416146cda2662b403f90' 
  AND (
    token = 'jGWOpgA+OiIYg07ApZW6vVYOI6tGMY4h8tRBuq0pfMA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )