Okay
The "OK" emoji from YomiYocai Wechat emoji set
Please feel free to get it from the link as blow
https://sticker.weixin.qq.com/cgi-bin/mmemoticon-bin/emoticonview?oper=single&t=shop/detail&productid=aL2PCfwK/89qO7sF6/+I+UDhfwEjhec2ZNvdnLLJRd/Pg5uJbzE0uGnxTZurfHXpOA+JUQFAhwQF15praxgAFZqATMpw/efGy6r4KjrOk5OQ=