UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ZiT2rU9KLtPCUvm8pQhjqRNK0GoVmu7izxmMHRv55pg=' 
WHERE 
  key_id = '4ceff6e8c4ba17dbc5c6d3d990687e47c72a1dfa1a2c0c00a7cf7789120fb903' 
  AND (
    token = 'ZiT2rU9KLtPCUvm8pQhjqRNK0GoVmu7izxmMHRv55pg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )