UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'eM76w3prsCUDLqp2meVrAjKOtHXMsFKlIfNZA6uabZw=' 
WHERE 
  key_id = '2278c5083124e7dacc12908cdce3d8680e14a5f88829702a4565911c8c7c66f3' 
  AND (
    token = 'eM76w3prsCUDLqp2meVrAjKOtHXMsFKlIfNZA6uabZw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )