messagepb.NewMessage

{
    "content": {
        "value": "string"
    },
    "create_time": 0,
    "id": 0,
    "image_buffer": {
        "data": [
            0
        ],
        "size": 0
    },
    "image_status": 0,
    "new_id": 0,
    "push_content": "string",
    "receiver": {
        "value": "string"
    },
    "sender": {
        "value": "string"
    },
    "sequence": 0,
    "source": "string",
    "status": 0,
    "type": 0
}