AiX1eh1G3CKv8P7toj3HriMsDUrUEPdCvMpzAcYNGhAJ
{"type":"add_market_data","params":{"owner_id":"jeanrocha.near","approval_id":2,"nft_contract_id":"x.paras.near","token_id":"501732:480","ft_token_id":"near","price":"300000000000000000000000","started_at":null,"ended_at":null,"end_price":null,"is_auction":null,"transaction_fee":"250"}}