curl --request POST \
  --url https://api.uniblock.dev/uni/v1/json-rpc?chainId=2741 \
  --header 'content-type: application/json' \
  --data '{
    "id": 1,
    "jsonrpc": "2.0",
    "method": "zks_estimateFee",
    "params": [
      {
        "from": "0x1111111111111111111111111111111111111111",
        "to": "0x2222222222222222222222222222222222222222",
        "data": "0xffffffff"
      }
    ]
  }'

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "gas_limit": "0x156c00",
    "gas_per_pubdata_limit": "0x143b",
    "max_fee_per_gas": "0xee6b280",
    "max_priority_fee_per_gas": "0x0"
  }
}