Intercepting Metamask ETH/other chain transaction after signing, before being sent

Hi,

I am working on a Metamask Snap in which I need to intercept a transaction prior to being send.
- sign the transaction
- intercept and do some things here
- send the transaction

For ETH, for the signing part based on the Metamask documentation I could use one of the signing data methods https://docs.metamask.io/guide/signing-data.html#signing-data however, I am a bit confuse on the possibility of supporting for sending the transaction the ETH RPC method **_eth_sendRawTransaction_**

I know currently Metamask supports _eth_sendTransaction_ however that wouldn't help my use case and that there is an already closed similar topic https://github.com/MetaMask/metamask-extension/issues/3475 however without any result.

I would appreciate if you could please advice if and how a use case as described above (intercepting a transaction before being sent but after signing it) could/would be possible to work ? Thank you

Review the MetaMask signing data documentation and the prior MetaMask extension issue #3475. Check whether Snaps can intercept a signed transaction and whether eth_sendRawTransaction is supported alongside eth_sendTransaction; done means documenting a confirmed supported path or the missing capability.

Written by the indexing model from the issue text.