Unable to deploy KEYLESS_CREATE2_ADDRESS on mantle sepolia

[RyanRHall]

I've followed your steps for deployment and funded the KEYLESS_CREATE2_DEPLOYER_ADDRESS (I gave it 100 MNT, which seems to be enough). Then I ran the cast command:

cast publish --rpc-url ... 0xf87e8085174876e80...

... per your instructions and I get an insufficient gas error:

Error: server returned an error response: error code -32000: failed to forward tx to sequencer, please try again. 
Error message: 'failed to forward tx to sequencer, please try again.
Error message: 'intrinsic gas too low''

As far as I am aware, I cannot increase the gas limit because that would invalidate the signature on the pre-signed tx. So I'm stuck unless you can provide a pre-signed tx with a higher gas limit. Thank you!!