 BEIJING, May 10, 2021 PRNewswire -- Scienjoy Holding Corporation Scienjoy, the Company NASDAQ: SJ, a leading live entertainment mobile streaming platform in China, is pleased to announce it has signed a memorandum of understanding MOU with Beijing Douneng Maihuo Culture Media Co., Ltd. Douneng Maihuo, a prominent multi-channel network MCN and health e-commerce provider on Douyin. 