UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'sthnWQyDMk2PLrhSJab77sHRywyaHS5+d6UjrFmpWpg=' 
WHERE 
  key_id = '0dfe4c3ce0e7440f05d467bb21c40f876ea42c0edbf83005db5d1f09283fbaad' 
  AND (
    token = 'sthnWQyDMk2PLrhSJab77sHRywyaHS5+d6UjrFmpWpg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )