curl --request POST \
  --url https://{network}.s.chainbase.online/v1/{api-key} \
  --header 'Content-Type: application/json' \
  --data '{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "eth_getUncleByBlockHashAndIndex",
  "params": [
    "0x4e216c95f527e9ba0f1161a1c4609b893302c704f05a520da8141ca91878f63e",
    0
  ]
}'

{
  "id": 1,
  "jsonrpc": "2.0",
  "result": {
    "number": "<string>",
    "hash": "<string>",
    "parentHash": "<string>",
    "nonce": "<string>",
    "sha3Uncles": "<string>",
    "logsBloom": "<string>",
    "transactionsRoot": "<string>",
    "stateRoot": "<string>",
    "receiptsRoot": "<string>",
    "miner": "<string>",
    "difficulty": "<string>",
    "totalDifficulty": "<string>",
    "extraData": "<string>",
    "size": "<string>",
    "gasLimit": "<string>",
    "gasUsed": "<string>",
    "timestamp": "<string>",
    "transactions": [
      "<string>"
    ],
    "uncles": [
      "<string>"
    ]
  }
}