F9Mmva31XEDhYu4Mj3cm5HuRUSi12xSVpnyiSZmp7fPq
{"type":"add_market_data","params":{"owner_id":"lordazka.tg","approval_id":0,"nft_contract_id":"mint.sharddog.near","token_id":"520:311","ft_token_id":"near","price":"1000000000000000000000000","started_at":null,"ended_at":null,"end_price":null,"is_auction":null,"transaction_fee":"250"}}