rick roll

local chatBox = peripheral.find("chatBox")

local message = {
    {
        text = "Click here for FREE netherite",
        clickEvent = {
            action = "open_url",
            value = "https://www.youtube.com/watch?v=fcZXfoB2f70"
        }
     }
}

local json = textutils.serialiseJSON(message)

chatBox.sendFormattedMessage(json)