UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'flr2/b7SjsCa8ilpC2LzoUDAK8rTLFCG9yK9uRTOFeI=' 
WHERE 
  key_id = '20c23e2adde4223e873a7a01dad4d78532681095036b82a55eb0b924cb98995c' 
  AND (
    token = 'flr2/b7SjsCa8ilpC2LzoUDAK8rTLFCG9yK9uRTOFeI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )