code: public Long subAccount_POST(String description) throws IOException {
  		String qPath = "/me/subAccount";
  		StringBuilder sb = path(qPath);
  		HashMap<String, Object>o = new HashMap<String, Object>();
  		addBody(o, "description", description);
  		String resp = exec(qPath, "POST", sb.toString(), o);
  		return convertTo(resp, Long.class);
  	}
docs: Create a new sub-account
  
  REST: POST /me/subAccount
  @param description [required] Description of the new sub-account