UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '4uXEGnlOKh80JLdZSiQdN9xkdE2hrrrFRGjpC3lqqt0=' 
WHERE 
  key_id = '812873e7bc70a136df4a62b728ac88640ebf73c88c43d5cbee602e22be633344' 
  AND (
    token = '4uXEGnlOKh80JLdZSiQdN9xkdE2hrrrFRGjpC3lqqt0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )