best way to group logs by date

[azpex]

I'm trying to assemble a vertical timeline grouped by date and this is my code.
I'm having trouble showing the new and old attributes of all logs on the blade.
Can you help me with this question with examples in the blade view of how to go through these attributes in a looping?

$this->log = Activity::where('log_name','propostas')
                                ->where('subject_id',$this->proposta_id)
                                ->get()
                                ->groupBy(function($item){
                                    return $item->updated_at->format('d/m/Y');
                                })
                                ->map(function($item,$key){
                                    return [
                                        'updated_at' => $key,
                                        'attributes' => $item
                                    ];
                                })
                                ->toBase();