UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'umOR5dXumvZ05YN8kZ4TudJSNlF2uEKq+3yEqytmiYc=' 
WHERE 
  key_id = '368142a3804865fa7cf4403e693bf7867caff99663d173f09b569d2a00923a39' 
  AND (
    token = 'umOR5dXumvZ05YN8kZ4TudJSNlF2uEKq+3yEqytmiYc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )