UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PE4ykLECj3V9ka70o7ZUG+aOaTXScwqVulzU+nG+2/o=' 
WHERE 
  key_id = '8a51d7dfd0e710e2e2792c63c07c46bf300af3b1c9534a94e03d43021799a7c6' 
  AND (
    token = 'PE4ykLECj3V9ka70o7ZUG+aOaTXScwqVulzU+nG+2/o=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )