In the Everscale -> EVM direction, the bridge works analogously, with one exception. Due to potentially high network fees, relays do not send transactions to the EVM networks. Instead, relays have to sign specific EVM-compatible payload with their key, and put the signature in a special contract in the Everscale network. Each connected EVM network has a special contract (Bridge), which stores the public keys of the relays, so it's possible to verify, that the signature is made by the actual relay. Anyone can send a payload and a list of signatures to Vault, and if the signatures are correct, Vault will send tokens to the user's Ethereum address.