UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '612Q1R2SJtKeDe0GjWwakyIofejTy0oiMvaRSAHq/SQ=' 
WHERE 
  key_id = '982493f5365af1271a5577be61b289f0891428daf27dc479a7cd4241d4d6d2f7' 
  AND (
    token = '612Q1R2SJtKeDe0GjWwakyIofejTy0oiMvaRSAHq/SQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )