One of the best world-building creations I have seen to answer this question is outlined in detail in the RPG Nova Praxis by Void Star Studios. And no, this isn't a plug for the product. I am not associated with Void Star Studios in any way except as a customer of that product.
In the post-Singularity game world they have, the economy works by earning reputation ratings points and losing them either in the form of being downvoted by others or consuming more products and resources than your rep-rating normally allows for. It is less of a currency medium of exchange than it is a means of rationing consumption and rewarding production/good behavior. Everyone gets a default level of 'income' -- housing, medical care, clothing, food, entertainment. And those that are content to do nothing but subsist on that are called Defaults.
But most people decide to 'work' to get a higher rep-rating. They can be rewarded by upvotes from others (which cost those others) or creating new nanotech compiler templates or entertainment sims or doing services for other people that we today would consider 'beneath us'. One can also 'work' in a 'company' that is allocated a larger rep-rating to acquire compilers and robots and property or ships, etc. 205
Those that provide a popular service and/or do it well get rewarded with rep-ratings as 'corporate income' which get distributed as 'profits' to the owners (usually high rep-rating individuals) and 'pay' to the workers.
Point is: There is great demand for 'work' to be had by individuals and society in general. Similarly, being a jerk in that society costs you as well.
For the real hard cases, traditional cops and trials and sentencing happens just as now. Only the punishments are either not that harsh OR are very harsh, like being exiled from the House you belong to. Like now, murder, rape and treason could get you in a lot of trouble. But libel and jaywalking will only cost you points and if you have enough in the negative it probably is very hard to rise up being Default status.
It covers all kinds of details, like how cops can be upvoted but not downvoted to protect them from citizen vindictiveness and how downvoting and upvoting of individuals in general is moderated to prevent abuse. There is also a maximum level of rep-rating one can achieve (was 10 but recently legislated to 11). And there are faults involved, like how the government pays more attention to high rep-rating individuals over low ones. It is not perfect -- which makes it all the more plausible and real.
In other words, like the <PERSON> system in the book Down And Out in the Magic Kingdom only much more detailed in its use. 207