<?xml version="1.0"?><methodCall><methodName>ContactService.findByEmail</methodName><params><param><value><string>key</string></value></param><param><value><string>test@email.com</string></value></param><param><value><array><data><value><string>Id</string></value><value><string>FirstName</string></value><value><string>LastName</string></value></data></array></value></param></params></methodCall>