curl --request POST \
--url https://api.international.coinbase.com/api/v1/transfers/withdraw \
--header 'CB-ACCESS-KEY: <api-key>' \
--header 'CB-ACCESS-PASSPHRASE: <api-key>' \
--header 'CB-ACCESS-SIGN: <api-key>' \
--header 'CB-ACCESS-TIMESTAMP: <api-key>' \
--header 'Content-Type: application/json' \
--data '{
"portfolio": "<string>",
"asset": "<string>",
"amount": "<string>",
"add_network_fee_to_total": true,
"network_arn_id": "networks/ethereum-mainnet/assets/313ef8a9-ae5a-5f2f-8a56-572c0e2a4d5a",
"address": 8.770100973892308e+47,
"nonce": 30,
"destination_tag": "<string>"
}'