[iJumbo]

Install dcmd
https://sampwiki.blast.hk/wiki/Fast_Commands


and try this
put under OnPlayerCommandText

dcmd(me,2,cmdtext);

pawn Code:

dcmd_me(playerid,params[])
{
    if(!strlen(params)) return SendClientMessage(playerid, RED, "USAGE: /me [action]");
    new string[128],name[MAX_PLAYER_NAME];
    GetPlayerName(playerid, name, sizeof(name));
    format(string,sizeof(string),"* %s %s",name,params);
    print(string);
    return ProxDetector(30.0, playerid, string, COLOR_PURPLE,COLOR_PURPLE,COLOR_PURPLE,COLOR_PURPL E,COLOR_PURPLE);
}