Post signed order to target NFT marketplace. This API asynchronous submit the signed order to the regarding NFT marketplace and returns a unique request_id with with each post order request, you can check the post order result with request_id in https://docs.nftgo.io/reference/post_trade-v1-nft-check-post-order-results

The request_id for opensea, looksrare, and x2y2 is equal to orderHash, so you can use request_id to query orders except blur.

Request Id Creation Logic:
opensea:Order Hash
looksrare:Order Hash
x2y2:Order Hash
blur:custom logic
nftgo:Order Hash