2YBm7najtUumntDaLQNZG3E8pAuqzGoeCYmuczjsyuyr
{"type":"add_market_data","params":{"owner_id":"320b514ebbeefa65c9779c69615c81f40056ff0c39a1024bee5d2c305b42c218","approval_id":20,"nft_contract_id":"spin-nft-contract.near","token_id":"294","ft_token_id":"near","price":"20000000000000000000000000","started_at":null,"ended_at":null,"end_price":null,"is_auction":null,"transaction_fee":"200"}}