{ "key": "string" }
curl --location --request POST 'https://polkadot.api.subscan.io/api/v2/scan/search' \ --header 'x-api-key: 4d0c8ba32dde4a06bda83d52af49120f' \ --header 'Content-Type: application/json' \ --data-raw '{ "key": "string" }'