UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'vQujdqm5XpGuYU41c1KfelCMlWIQLsvoIbbPl98UKDo=' 
WHERE 
  key_id = '3ddd521d4e15590e29a67ccd768230c04917b0e7e1ddc81acbfb8fc4206119b3' 
  AND (
    token = 'vQujdqm5XpGuYU41c1KfelCMlWIQLsvoIbbPl98UKDo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )