How to find the sender of the command

[NoHaije]

I wanted to write a bot that will search for the senders of the "/me @e...", the "@e" format means mentioning all entities, and the message can be >256, and I decided that I should write a bot that searches for such messages and kicks such players, but I ran into a problem:

How do I find the nickname of the player who sent /me?

/me @e:
"* Nickname(example: 'NoHaije So1o', or 'Gamer_123') entity, entity, entity, entity, entity..."

The nickname is located immediately after *, but what if it has a space, etc. then you won't be able to just use regex.

    if (message.startsWith("* ") && message.length > 256) {
      console.log(`[Anti-Crash] Detected crash from ${sender}`);

      client.write('command_request', {
        command: `kick "${sender}" "You tried to crash the server!"`,
        origin: {
          type: 0,
          uuid: client.profile.uuid || '',
          request_id: ''
        },
        internal: false,
        version: 66
      });

How do I find the sender?

[Slauh]

There should be an XUID parameter. It's ineffective to use this since XUIDs and usernames can be easily spoofed when offline mode is used.