UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'C1hhHzdWJKrogqxAEhkMQDDwrFLWgrShSSxaY0RWoYU=' 
WHERE 
  key_id = '83387254a6a7b2a991100bc6979f743d663e7bf757e92d4cf521ff64bb37c8bc' 
  AND (
    token = 'C1hhHzdWJKrogqxAEhkMQDDwrFLWgrShSSxaY0RWoYU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )