Parse single line multi object json with logstash

Elastic Stack Logstash
4

Move my suggestion to before the json filter:

filter {
    mutate {
        gsub => [ "message", "}{", "}
{" ]
    }
    split {
        field => "message"
    }
    json {
        source => "message"
    }
    split {
        field => "[logEvents]"
    }
    mutate {
        add_field => {
            "log-event-id" => "%{[logEvents][id]}"
            "log-event-message" => "%{[logEvents][message]}"
            "log-event-time" => "%{[logEvents][timestamp]}"
        }
        remove_field => [ 
            "[message]",
            "[host]",
            "[path]",
            "[logEvents]",
            "[subscriptionFilters]",
            "[messageType]"
        ]
    }
}