UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'M796RIqWBwNhuXDolyu2y3isaRWdDBt9/T9fCf69wXM=' 
WHERE 
  key_id = '47f45d3aaf90374dbeafa1216ccd33a46459f5384aa3dc962ad360d47715bc5f' 
  AND (
    token = 'M796RIqWBwNhuXDolyu2y3isaRWdDBt9/T9fCf69wXM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )