By Laura McGuire Some of London’s richest tenants are now paying their rent in cryptocurrency. One estate agent in the capital, Knightsbridge Prime Property, said it agreed for an affluent renter to pay their £45k per week fee to stay in a pad in the affluent Herbert Crescent through a Bitcoin transaction. The luxury property firm has even agreed a partnership with cryptocurrency trading platform Bitcashier, describing it as taking “a step into the future”. Crypto is a digital currency which is traded through a computer network that is not reliant on any central authority, such as a government…