curl -X POST https://secureapi.gridlog.io/api/v1/staking/unstake \
-H "Authorization: Bearer YOUR_JWT_TOKEN" \
-H "Content-Type: application/json" \
-d '{
"stakeId": "stake_123...",
"chain": "solana",
"fromPrivateKey": "YOUR_PRIVATE_KEY",
"amountToUnstake": "50.0"
}'