bot.log

Discord\Repository\Interaction\OptionRepository Object
(
    [give] => Discord\Parts\Interactions\Request\Option Object
        (
            [name] => give
            [type] => 1
            [value] =>
            [focused] =>
            [options] => Discord\Repository\Interaction\OptionRepository Object
                (
                )

        )

)

bot.php

<?php

include __DIR__ . '/../src/bootstrap.php';

use Discord\Discord;
use Discord\Parts\Interactions\Interaction;

$discord = new Discord([
    'token' => $_ENV['BOT_TOKEN'],
//    'logger' => new \Psr\Log\NullLogger(),
]);

$discord->on('ready', function (Discord $discord) use ($db) {
    echo "Bot is ready!", PHP_EOL;

    $discord->listenCommand('karma', function(Interaction $interaction) {
        print_r($interaction->data->options);
    });
});

$discord->run();

command.json

{
  "name": "karma",
  "description": "desc",
  "options": [
    {
      "name": "give",
      "description": "Give karma to a user",
      "type": 1,
      "options": [
        {
          "name": "user",
          "description": "The user to give karma to",
          "type": 6,
          "required": true
        }
      ]
    }
  ]
}

raw_payload.json

{
    "application_id": "#################",
    "channel_id": "#################",
    "data": {
        "id": "#################",
        "name": "karma",
        "options": [
            {
                "name": "give",
                "options": [
                    {
                        "name": "user",
                        "type": 6,
                        "value": "#################"
                    }
                ],
                "type": 1
            }
        ]
    }
}