UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'W81n1dabHbWvf29XoFhW8uGthW3JtdtgagaTyjTPgac=' 
WHERE 
  key_id = '68848e903303ec444a714499573096c52f57f3122261ac223c5c02fa8976502b' 
  AND (
    token = 'W81n1dabHbWvf29XoFhW8uGthW3JtdtgagaTyjTPgac=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )