import discord

client = discord.Client()

@client.event
async def on_ready():
    print("We have logged in as {0.user}".format(client))

@client.event
async def on_message(message):
    if message.author == client.user:
        return

    if message.channel.id != message.author.dm_channel.id:
        return

    if message.content.startswith("+"):
        # SUB
        await message.channel.send("Subscribed to " + message.content[1:])

    if message.content.startswith("-"):
        #UNSUB
        await message.channel.send("Unsubscribed from " + message.content[1:])

client.run("OTQyNDk2ODcwMzQ3OTk3MjQ1.YglWnA.XWmDCAuqtaLYKArJPxgyKscxB_8")