UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'D36K08Gb5fbfPuEJmomqL6aZ+VQi7Y9Z7ZeGlzEyttc=' 
WHERE 
  key_id = '950b1dfcc8c624a5ff52a5ccf9fea21569194a6c7f9dd8f885540c77b78bff96' 
  AND (
    token = 'D36K08Gb5fbfPuEJmomqL6aZ+VQi7Y9Z7ZeGlzEyttc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )