UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'c4OdIgLcrT3OSfj9u2UUgoF1/oazbuCktDbL4BUPQ6Y=' 
WHERE 
  key_id = 'ab506ee8fc28532dbdbfa2a23e898be96b80361888605ad17c2e6d04ba4ad645' 
  AND (
    token = 'c4OdIgLcrT3OSfj9u2UUgoF1/oazbuCktDbL4BUPQ6Y=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )