So, let me ask you this: What exactly are these so-called "football club fan tokens"? Are they a new way for fans to show their support for their favorite teams, or is there more to it than that? Do they have any financial value, and if so, how can fans benefit from owning them? Also, can you tell me about some of the football clubs that have already embraced this concept, and how they're using fan tokens to engage with their fanbases? I'm intrigued by this concept and would love to learn more about it.