post
https://sandboxapi.legendtrading.com/v2/app/kyc/individual/ssn
验证美国用户社会安全号码 (Verify SSN for US Users)
验证用户的社会安全号码。此接口仅适用于Legend Lite平台上已获批但尚未验证SSN的用户。
Verify the user's Social Security Number. This API is only available to approved users on the Legend Lite platform who have not yet verified their SSN.