UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'iqqiuMCZ8S7tsWr49dDOdLuUqQQe13olc8wf2BAeIcU=' 
WHERE 
  key_id = '7c5c4c4b2e88142f771294c52f5728f1e8f31496c7456a6f5c94f9f2010e2955' 
  AND (
    token = 'iqqiuMCZ8S7tsWr49dDOdLuUqQQe13olc8wf2BAeIcU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )