fix: fixed regression in TransactionsService.importSignature() (#2145)

Signed-off-by: Eric Le Ponner <eric.leponner@icloud.com>

Author: ericleponner

back-end/apps/api/src/transactions/transactions.service.ts

@@ -530,7 +530,7 @@ export class TransactionsService {
         const params: any = {};
 
         batch.forEach((update, idx) => {
-          caseSQL += `WHEN :id${idx} THEN :bytes${idx} `;
+          caseSQL += `WHEN :id${idx} THEN :bytes${idx}::bytea `;
           params[`id${idx}`] = update.id;
           params[`bytes${idx}`] = update.transactionBytes;
         });