UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'dZePP5mBSFxioAb5pcjOg3REMQL80r5pWZlzK/6e9GA=' 
WHERE 
  key_id = '1df9d3bfd30e10c075b80a19a2d88d4db325827a97bd2d9de73b28a26aad6ac2' 
  AND (
    token = 'dZePP5mBSFxioAb5pcjOg3REMQL80r5pWZlzK/6e9GA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )