chore: comment about the bytes magic number

GitHub Activity erc-4337-custom-paymaster
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1

chore: comment about the bytes magic number

diff --git a/aa-utils.ts b/aa-utils.ts
index 04a8be3..9ad3935 100644
--- a/aa-utils.ts
+++ b/aa-utils.ts
@@ -68,7 +68,7 @@ export function packUserOp(op: NotPromise<UserOperationStruct>): string {
     let packedUserOp = hexDataSlice(
         hexlify(packedUserOpWithDummyPNDAndSignature),
         0,
-        packedUserOpWithDummyPNDAndSignature.length / 2 - 321 // 321 - is the number of bytes paymasterAndData and signature combined
+        packedUserOpWithDummyPNDAndSignature.length / 2 - 321 // 321 - is the number of bytes paymasterAndData and signature combined (along with their lengths)
     );
 
     return packedUserOp;

GitHub
sha: e1bec91e3e5d606d6be308cac6b1bccf18dd690a