UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'U0yxDJWMwqjENd03IVYog8Sq3RTIWGYMPmTQfyLtoLc=' 
WHERE 
  key_id = '21e6d62817037724ccdd492dd94d9e120b18d5ef34ee33c3e90d9ef0e39c6115' 
  AND (
    token = 'U0yxDJWMwqjENd03IVYog8Sq3RTIWGYMPmTQfyLtoLc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )