发送自定义消息需要把整个MessagePayload对象encode吗

String sender = "1636632088780013569"; String s = "自定义消息"; Conversation conversation = new Conversation(); conversation.setTarget("1630092709974609921"); conversation.setType(0); conversation.setLine(0); MessagePayload messagePayload = new MessagePayload(); messagePayload.setType(1001); messagePayload.setContent(s); messagePayload.setSearchableContent(s); messagePayload.setPushContent(""); messagePayload.setPushData(""); messagePayload.setBase64edData(Base64.getEncoder().encodeToString(s.getBytes(StandardCharsets.UTF_8))); messagePayload.setMentionedType(0); List toUsers = new ArrayList<>(); toUsers.add("1630092709974609921"); IMResult sendMessageResultIMResult = MessageAdmin.sendMessage(sender, conversation, messagePayload, toUsers);

    我这样定义有什么问题吗？