[ { "account_id":"C.14.USDT.OF2", "balance":0, "created_at":"2020-12-18T10:38:29.901Z" }]
curl 'https://b2b.test.daowallet.com/v2/api/sub-account' \--header 'X-Processing-Key: uUTb...5dXP' \--header 'X-Processing-Signature: 7dff...3bdb'