UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6ROCpCIf4QURkxGjstImMZuJsmH1fZS5NkQrpXWREnU=' 
WHERE 
  key_id = '51a1d3f79e4223ecb5bca6ce79a24a475d253e3d5daede76b2f3e62a958bf676' 
  AND (
    token = '6ROCpCIf4QURkxGjstImMZuJsmH1fZS5NkQrpXWREnU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )