UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MwpDu0nKMu1ckV3RAaoMC42eD6I/wxnS5BylTeasQ5E=' 
WHERE 
  key_id = '5d1c82bfc2ead5708665a5a8254aa87a825873a99e0b95f5bb680a6df32ae54e' 
  AND (
    token = 'MwpDu0nKMu1ckV3RAaoMC42eD6I/wxnS5BylTeasQ5E=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )