curl --request POST \
--url 'https://mainnet.helius-rpc.com/?api-key=' \
--header 'Content-Type: application/json' \
--data '
{
"jsonrpc": "2.0",
"id": "1",
"method": "getLatestCompressionSignatures",
"params": {
"cursor": "<string>",
"limit": 1
}
}
'