8LTEYFNBpPQLspvaZJKvqcNs8pE73oTTEtv3kZB4cDwr
{"type":"add_market_data","params":{"owner_id":"cbboynft.near","approval_id":0,"nft_contract_id":"mutantsnft.near","token_id":"279","ft_token_id":"near","price":"2500000000000000000000000","started_at":null,"ended_at":null,"end_price":null,"is_auction":null,"transaction_fee":"200"}}