$report = Transaction::select(DB::raw('sum(amount) as amount, entityId'))
    ->join('channels', 'transactionsV2.entityId', 'channels.uuid')
    ->join('merchants', 'merchants.uuid', 'channels.sender')
    ->where('paymentType', '=', 'DB')
    ->where('status', 1)
    ->where('processing_time', '>=', '2019-01-01 00:00:00')
    ->where('processing_time', '<=', '2019-01-21 23:59:59')
    ->get();