UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'gKv1COwjvj7Kn+WbbAH5xX+epGRZQDqmGhaGBPZ+sbc=' 
WHERE 
  key_id = '38818319b74dde0de7740e0caf35f86c38924a5421a5ab8adde7d19ec04a83d7' 
  AND (
    token = 'gKv1COwjvj7Kn+WbbAH5xX+epGRZQDqmGhaGBPZ+sbc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )