Memo: EVENT_JSON:{"standard":"nep171","version":"1.0.0","event":"nft_transfer","data":[{"old_owner_id":"ea61ddb041fbef0d3507ebad4b54f9cce77bc4042bca50fa0225c51b0c50747d","new_owner_id":"liuhwang.near","token_ids":["1:91708"],"memo":""}]}