UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Nn8VbLSqaPTWf2yz+aF5LYKfN8k67jChI9j8qMa7bas=' 
WHERE 
  key_id = '4f68a318e8cd4383e223fa90cae289376af0fee5b3840475a288b313d647dfc6' 
  AND (
    token = 'Nn8VbLSqaPTWf2yz+aF5LYKfN8k67jChI9j8qMa7bas=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )