7xxSxdEXPDdeGyuXfyKhFCwXSy8NHQKUTCL4L5tiKMvq
{"type":"add_market_data","params":{"owner_id":"911a21942f0499c6bf914c2f4b7acd925f6270db09a13d2f2ce000c374c00ebb","approval_id":4,"nft_contract_id":"kaizofighters.tenk.near","token_id":"3037","ft_token_id":"near","price":"20000000000000000000000000","started_at":null,"ended_at":null,"end_price":null,"is_auction":null,"transaction_fee":"200"}}