public async Task <IReadOnlyList <AcceptedOperationModel> > GetAcceptedAsync()
        {
            var operations =
                await _operationsRepository.GetByStatusAsync(OperationStatus.Accepted, _maxAcceptedOperationsAmount);

            return(operations.Select(x => new AcceptedOperationModel
            {
                Id = x.Id,
                TransactionHash = x.TransactionHash,
                MasterWalletAddress = x.MasterWalletAddress,
                Nonce = x.Nonce,
                Type = x.Type,
                PayloadJson = x.ContextJson,
                Timestamp = x.Timestamp
            }).ToList());
        }