string 
                        loginName
                            = "spread@reasonables.com";
                    
                        string 
                        loginPassword
                            = "TEST0000-TEST-0000-TEST-0000TEST0000";
                    
                        string 
                        customerEmail
                            = "test@reasonables.com";
                    
                        string 
                        targetSubscription
                            = "NoClone
                                VIP";
                    
                        DoubleOptIn addOption = DoubleOptIn.Off;
                    
                        bool 
                        confirmIsNeeded;
                    
                        
                         
                    
                        //Create a Subscriber
                            object
                    
                        Subscriber customer =
                            new Subscriber();
                                customer.email = 
                                    "test@reasonables.com";
                                        customer.firstName = 
                                            "Alan";
                                                customer.lastName = 
                                                    "Wo";
                                                        customer.company = 
                                                            "Reasonable Software";
                    
                         
                    
                        //Create a SpreadWebService
                            object and use its method.
                    
                        SpreadWebService MySpread = new 
                        SpreadWebService();
                    
                         
                    
                        confirmIsNeeded
                            = MySpread.addSubscriberByInfo (loginName, loginPassword, customer, targetSubscription, addOption);
        
                     
                    
                        
                        Dim 
                        loginName
                        As String = 
                        "spread@reasonables.com"
                    
                        Dim 
                        loginPassword
                        As String = 
                        "TEST0000-TEST-0000-TEST-0000TEST0000"
                    
                        Dim 
                        targetSubscription As String = 
                        "NoClone VIP"
                    
                        Dim addOption 
                        As 
                        DoubleOptIn
                            = DoubleOptIn.Off
                    
                        Dim confirmIsNeeded
                        As Boolean
                    
                         
                    
                        'Create a subscriber
                            object
                    
                        Dim customer 
                        As New Subscriber
                    
                        customer.email = "test@reasonables.com"
                    
                        customer.firstName = "Alan"
                    
                        customer.lastName
                        = 
                            "Wo"
                    
                        customer.company = "Reasonable
                                Software"
                    
                        
                         
                    
                        'Create a SpreadWebService
                            object and use its method.
                    
                        Dim 
                        MySpread 
                        As New SpreadWebService
                    
                         
                    
                        confirmIsNeeded = MySpread.addSubscriberByInfo(loginName,
                            loginPassword, customer, _ targetSubscription, addOption)
        
                     
                    
                        
/**
* @name     addSubscriberByInfo
* @function add single subscriber's email address
* @param
* optInType  'Off'
* data	 receiver data
* (array import)	
*   $data = array(
*       'email'     =>  'spread@reasonables.com',   (required)
*       'firstName'	=>  'spread',                   (optional)
*       'lastName'	=>  'siqi',                     (optional)
*       'date1'     =>  date( 'c' )                 (optional, current time)
*       'date2'     =>  date( 'c' )                 (optional, current time)       
*       ......      =>  ......   
*	);
* @return
*	errorMsg	failed message
*  Msg			success message
*/
public function addSubscriberByInfo($loginEmail,$password,$data,$listName,$optInType){
	$addInArr = array(
		'loginEmail'	        => $loginEmail,
		'password'	        => $password,
		'subscriberArgs'        => $data,
		'subscription'	        => $listName,
		'optInType'	        => $optInType
		);
    $Client = new SoapClient("http://service.rspread.com/Service.asmx?WSDL");
	$errorMsg = $Client -> addSubscriberByInfo( $addInArr );
	return $errorMsg;
}
                     
                    
                        POST {{YOUR_API_URL}}/service.asmx 
Content-Type: application/soap+xml; charset=utf-8
Content-Length: {{length}}
                        
<?xml version="1.0" encoding="utf-8"?>
<soap12:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap12="http://www.w3.org/2003/05/soap-envelope">
  <soap12:Body>
    <addSubscriberByInfo xmlns="http://service.reasonablespread.com/">
      <loginEmail>spread@reasonables.com</loginEmail>
      <password>TEST0000-TEST-0000-TEST-0000TEST0000</password>
      <subscriberArgs>
        <email>test@reasonables.com</email>
        <firstName>Alan</firstName>
        <lastName>Wo</lastName>
        <company>Reasonable Software</company>
        <date1>2023-02-06T12:11:21</date1>
        <date2>2023-02-06T12:11:21</date2>
        <customField1>string</customField1>
      </subscriberArgs>
      <subscription>NoClone VIP</subscription>
      <optInType>Off</optInType>
    </addSubscriberByInfo>
  </soap12:Body>
</soap12:Envelope>