Football icon Lionel Messi’s contract in his move to French club Paris Saint-Germain includes a payment in crypto currency fan tokens, a source close to the matter told Reuters

Football star Lionel Messi’s signing on free at Paris St Germain incorporates a portion of the French club’s cryptographic money fan tokens, in the most recent large name support of new digital assets. The Argentine, 34, left Spanish side Barcelona and marked a two-year contract with Qatari-claimed Paris St Germain (PSG), with a possibility for a third year, on Tuesday.

Affirming a selective Reuters report, PSG said on Thursday the tokens were remembered for his “welcome bundle,” which media reports have assessed at 25-30 million euros ($29-35 million). The club didn’t reveal the extent of tokens in the package, yet said the sum was “huge”.

Fan tokens are a kind of digital currency that permit holders to decide on generally minor decisions related with their clubs. Among the clubs to dispatch tokens this year are English Premier League champions Manchester City and Italy’s AC Milan.

Like bitcoin and other advanced monetary forms, fan tokens can be exchanged on trades. They additionally share in the same manner as other digital currencies for wild value swings, driving some monetary controllers to give deterrent to investors.

Still, several high profile business and entertainment figures have backed crypto assets, with Tesla boss Elon Musk, Twitter founder Jack Dorsey and rapper Jay-Z among those to have shown support for bitcoin.

PSG said there had been high volume of exchanging of its fan tokens after reports of Messi’s transition to the club emerged.

“The hype surrounding the latest signings in the club’s busy summer transfer window created a huge surge of interest in $PSG Fan Tokens, with trading volumes exceeding $1.2 billion in the days preceding the move,” it said.

PSG’s token, which has a market capitalisation of about $52 million, risen above 130% in only five days amidst the speculation over Messi’s appearance to an unequaled high of more than $60 on Tuesday. They were last down 10% at about $40, as per the CoinMarketCap site.