UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Ktm/6xkwRk8b5wTRWI2kFxgRK8wRN2EVYbo2OAIloy4=' 
WHERE 
  key_id = '92b2101dd2ce67709ee10e5095a594d641b3330c96ab0eb30c7805e3bd757fa8' 
  AND (
    token = 'Ktm/6xkwRk8b5wTRWI2kFxgRK8wRN2EVYbo2OAIloy4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )