UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'UvrYrWghWkB8/pZEVrmOhTFy3QW0UIaIe3fjy1X8/AI=' 
WHERE 
  key_id = '42e31587c015c2b3c1321870f7667a41db58797088c13172b2a28b50a7a76f81' 
  AND (
    token = 'UvrYrWghWkB8/pZEVrmOhTFy3QW0UIaIe3fjy1X8/AI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )