{"method":"mention","service":"message","data": {"accountId":"39456257143545255","groupId":"7070722571989963531","message":"hihi @Saint @Esbt Test haha","mentions": [ {"name":"@Saint","uid":"1598980502599776027","pos":5,// vị trí trong chuỗi văn bản tin nhắn"length":6 }, {"name":"@Esbt Test","uid":"7972996841116752526","pos":12,"length":10 } ] }}