UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'eG4DkgMRD1R6tmAS+hWiklHYZElGhK9owuxxS+iFQII=' 
WHERE 
  key_id = 'c1af657200755a9f4cdc868bde76646f010785012cdec027546d5023397a37d3' 
  AND (
    token = 'eG4DkgMRD1R6tmAS+hWiklHYZElGhK9owuxxS+iFQII=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )