state_getKeysPaged
curl -s https://api-acala.n.dwellir.com/YOUR_API_KEY -H 'Content-Type: application/json' -d '{"jsonrpc":"2.0","id":1,"method":"state_getKeysPaged","params":["0x26aa394e...6371da9", 100, "0x", null]}'
Prefer this over state_getKeys
for large storage maps.