UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'lLvG7a5HWtyxPzOUVy56E0/xTQ1b7Q5usZoFsPNy8As=' 
WHERE 
  key_id = '936fe493493c784f8843b1945b7ff69b20fb96ea1df0d9e7a4b59acb63154ab6' 
  AND (
    token = 'lLvG7a5HWtyxPzOUVy56E0/xTQ1b7Q5usZoFsPNy8As=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )