{"msg_id":"350887578225870840","timestamp":"1499262180706","direction":"outgoing","to":"13675138163","from":"13911368791","chat_type":"chat", "payload": {"ext":{"em_is_big_expression":true,"em_expression_id":"em1008"},"bodies":[{"msg":"[示例8]","type":"txt"}],"from":"13911368791","to":"13675138163"}}