UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'plLI50SyzwyEqJyBbcZemovN/xWFgYFJqK8OyDDZXms=' 
WHERE 
  key_id = '8a6a51cc5c20287fdcc73774d26f30f3be4f8bca8fe18bd19364f275bb02d078' 
  AND (
    token = 'plLI50SyzwyEqJyBbcZemovN/xWFgYFJqK8OyDDZXms=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )