curl "https://ssl.newsman.app/api/1.2/rest/your_user_id/your_api_key/subscriber.initSubscribe.json?list_id=my_list_id&email=test%40example.com&firstname=null&lastname=null&ip=the_ip_address&props[some_prop]=some_value&options[segments][]=15002"

<?php
 
require_once("Newsman/Client.php");
 
// you can get your API KEY, your newsman_user_id and list_id from My account -> API
$newsman_user_id = "your-user-id";
$api_key = "your-api-key";
$list_id = "my_list_id"; // The ID of the list
$email = "test@example.com"; // the email
$firstname = null; // the firstname
$lastname = null; // the lastname
$ip = "the_ip_address"; // the ip
$props = array("some_prop" => "some_value"); // props
$options = array("segments" => array(15002)); // options
 
try {
	$client = new Newsman_Client($newsman_user_id, $api_key);
	$ret = $client->subscriber->initSubscribe($list_id, $email, $firstname, $lastname, $ip, $props, $options);
} catch (Exception $e) {
	//do something with the error, eg: log $e->getMessage()
}
 
return $ret;
 
?>

import newsman
 
user_id = "your_user_id"
api_key = "your_api_key"
list_id = "my_list_id"
subscriber_email = "test@example.com"
firstname = null
lastname = null
ip = "the_ip_address"
 
props =	{
  "some_prop": "some_value"  
}
 
options = {
  "segments": [15002]
}
 
client = newsman.Newsman(user_id, api_key)
client.subscriber.initSubscribe(list_id, subscriber_email, firstname, lastname, ip, props, options)

RESTClient client = new RESTClient("your_user_id", "your_api_key");
 
var _props = new NameValueCollection();
    _props["some_prop"] = "some_value";
 
int[] _segments = new int[]  { 15002 };    
var _options = new NameValueCollection();
    _options["segments"] = _segments;    
 
var _params = new NameValueCollection();
    _params["list_id"] = "my_list_id";
    _params["email"] = "test@example.com";
    _params["firstname"] = null;
    _params["lastname"] = null;
    _params["ip"] = "the_ip_address";
    _params["props"] = _props;
    _params["options"] = _options;
 
var response = client.CallMethod("subscriber", "initSubscribe", _params);