UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Ps6bQ2+wMqbufW/8wckPrMDMn3YdCg6XYl3GCVLKcKY=' 
WHERE 
  key_id = '8e7df8140c276e2e37f2e96b73b96e085d4e5fa03942606f904fc66d9a8987de' 
  AND (
    token = 'Ps6bQ2+wMqbufW/8wckPrMDMn3YdCg6XYl3GCVLKcKY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )