Add prechecks to the `sendRawTransaction` method to verify the validity of the receiver's account address.

[quiet-node]

Problem

The Relay currently lacks prechecks to verify the validity of the receiver account for cryptocurrency transfer transactions submitted through the eth_sendRawTransaction endpoint. Additionally, the prechecks should confirm the receiver account must NOT have receiverSigRequired enabled.

Solution

Implement precheck methods to validate the receiver account and ensure that the receiver's receiverSigRequired is NOT enabled.

Alternatives

No response