const unstakeRequest = await fireblocks.executeStakingUnstake(
"SOL", {
id: positionId,
txNote: "unstake 100 SOL from vaultId 1, 24 Jan 2024"
});
const position = await fireblocks.getPosition(positionId);
// Retrieve the ongoing txId by finding the only uncompleted transaction
const txId = position.relatedTransactions.find((tx) => !tx.completed)
// .. sign it