msy-prod/database/factories/FriendApply.php

<?php

use Faker\Generator as Faker;

$factory->define(\App\Models\Friends\FriendApplyModel::class, function (Faker $faker) {
    $uids = \App\Models\User\UserModel::get()->pluck('uid')->toArray();
    return [
        'last_at' => $faker->unixTime('now') - 7 * 86400 + rand(0, 7*86400),
        'uid' => $faker->randomElement($uids),
        'to_uid' => $faker->randomElement($uids),
        'unread_cnt' => $faker->randomNumber(),
        'state' => $faker->randomElement([0, 1])
    ];
});