UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'zrU0soIzBYk3q6VX6nWK2Blf7EEocVInkS4hGd4/iZU=' 
WHERE 
  key_id = '51e7f3923c49830801444705fbeddd86f656d0a9162d679e23a606556a654c47' 
  AND (
    token = 'zrU0soIzBYk3q6VX6nWK2Blf7EEocVInkS4hGd4/iZU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )