UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'xTHs44M9zaeYEM/+4CtzODj3roCCy4txS0U9fnAuk5s=' 
WHERE 
  key_id = '2781153e5703d7f27710e44fc6c2c7ff4b69308e4383016ef34b254397f19c4f' 
  AND (
    token = 'xTHs44M9zaeYEM/+4CtzODj3roCCy4txS0U9fnAuk5s=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )