UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'qkhv2zMiJVHSePTMLkpvTomGMjYmORgZVzPZ3O8MeZc=' 
WHERE 
  key_id = '1b6735f05fbd98de8b080326bbc6d12e5347b02a99885688dd7f8f67403e0e30' 
  AND (
    token = 'qkhv2zMiJVHSePTMLkpvTomGMjYmORgZVzPZ3O8MeZc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )