[Bug]: PPOM - extension crashes with a error when performing Malicious permit with integer address

[sleepytanya]

Describe the bug

Malicious permit with integer address from PPOM Malicious warning bypasses - Signatures section breaks MetaMask with an error

Expected behavior

Deceptive request warning should be displayed.

Screenshots/Recordings

Steps to reproduce

1. Connect to test dapp
2. Click Malicious permit with integer address within the PPOM Malicious warning bypasses - Signatures section
3. See the error

Error messages or log output

No response

Version

12.1.0

Build type

None

Browser

Chrome

Operating system

MacOS

Hardware wallet

No response

Additional context

No response

Severity

No response

[pedronfigueiredo]

To be cherry-picked into RC 12.1.0.

[matthewwalsh0]

Blocked by #26287.