I am creating a seeder in laravel, but I have to write 1 column json data, but I could not do it, how can I create a seeder column.

Seeder `In seeder there will be "bank name" and "iban" in iban column`

[![enter image description here](https://i.stack.imgur.com/MYZQL.png)](https://i.stack.imgur.com/MYZQL.png)
Migration

```
    public function up()
    {
        Schema::create('settings', function (Blueprint $table) {
            $table->id();
            $table->string('account_type');
            $table->string('name');
            $table->json('ibans')->nullable();
            $table->timestamps();
        });
    }

```

Seeder

```
    public function run()
    {
        DB::table('settings')->insert([
            'name' => 'Şirket Ünvanı',
            'account_type' => 'settings',
            'ibans' => json_decode('"a":1,"b":2',true),
            'created_at' => now(),
            'updated_at' => now(),
        ]);
    }

```