UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '5yGFV0WdkjlWRf3gvjocPVUoKE1mKAYaxq77nTBPIOI=' 
WHERE 
  key_id = '56d434fc4704a07a98b1a058ff9aab079d783868da9af36a64ed2efaf1f773e4' 
  AND (
    token = '5yGFV0WdkjlWRf3gvjocPVUoKE1mKAYaxq77nTBPIOI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )