UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ud6XiLKs9a8Bn9UsvIkjHHHbfOFNzYiZOzKDreNtRg4=' 
WHERE 
  key_id = '91727e559c266c2420f27e111383f5cc544a45c3b59878386467b1bb711944a4' 
  AND (
    token = 'ud6XiLKs9a8Bn9UsvIkjHHHbfOFNzYiZOzKDreNtRg4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )