Broadcast Transaction (Commit)
broadcast_tx_commit request type
Use a freshly signed base64 transaction for each request. This legacy synchronous send is still documented, but send_tx is the preferred path for new integrations, and the sample payload is illustrative only.
Broadcast a base64-encoded `SignedTransaction`; blocks until execution completes or a 10-second timeout elapses. Deprecated — use `send_tx`. Example payloads are placeholders and cannot be replayed.