curl --request POST \
  --url https://api.uniblock.dev/uni/v1/json-rpc?chainId=137 \
  --header 'content-type: application/json' \
  --data '{
    "id": 1,
    "jsonrpc": "2.0",
    "method": "eth_submitHashrate",
    "params": [
      "0x0000000000000000000000000000000000000000000000000000000000500000",
      "0x59daa26581d0acd1fce254fb7e85952f4c09d0915afd33d3886cd914bc7d283c"
    ]
  }'

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": true
}