UPDATE 
  q_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'S+N8smQTq82eMtX3xnez9tWceqP15IYaddzyFxh6l1w=' 
WHERE 
  key_id = '48c98e52630ea478de5772e39d11eadf5981fc12a166cece21e667778a302d63' 
  AND (
    token = 'S+N8smQTq82eMtX3xnez9tWceqP15IYaddzyFxh6l1w=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )