UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'UgDZeOSbd6mpDyezP8Srz8iSydLuUTielnq0eGCEJww=' 
WHERE 
  key_id = '75999b0452d7829c66bcfb6ba1ddbb5e79d849f8566796a16f23da91b30dfe2b' 
  AND (
    token = 'UgDZeOSbd6mpDyezP8Srz8iSydLuUTielnq0eGCEJww=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )