D1Mear2UyebRberDnbNzaTaejp4Pb899gGVqNcfeB3T6
{"type":"add_market_data","params":{"owner_id":"9555f8c0b0f6c36e224bdef7f8337ffc0f0edbd4abd51690a53b60516e3826b8","approval_id":2,"nft_contract_id":"mrbrownproject.near","token_id":"1388","ft_token_id":"near","price":"6000000000000000000000000","started_at":null,"ended_at":null,"end_price":null,"is_auction":null,"transaction_fee":"200"}}