AddressUnfrozen (Paxos V1) event signature and topic0

import { createPublicClient, http, parseAbiItem } from "viem"
import { mainnet } from "viem/chains"

const client = createPublicClient({ chain: mainnet, transport: http() })

const logs = await client.getLogs({
  address: "0x45804880de22913dafe09f4980848ece6ecbaf78",
  event: parseAbiItem("event AddressUnfrozen(address indexed addr)"),
  fromBlock: "latest",
})

for (const log of logs) console.log(log.args) // { addr }

import { Interface, JsonRpcProvider } from "ethers"

const provider = new JsonRpcProvider(process.env.RPC_URL)
const iface = new Interface(["event AddressUnfrozen(address indexed addr)"])

const logs = await provider.getLogs({
  address: "0x45804880de22913dafe09f4980848ece6ecbaf78",
  topics: [iface.getEvent("AddressUnfrozen")!.topicHash],
})

for (const log of logs) console.log(iface.parseLog(log)?.args)

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "eth_getLogs",
  "params": [
    {
      "address": "0x45804880de22913dafe09f4980848ece6ecbaf78",
      "topics": [
        "0xc3776b472ebf54114339eec9e4dc924e7ce307a97f5c1ee72b6d474e6e5e8b7c"
      ],
      "fromBlock": "latest"
    }
  ]
}

event AddressUnfrozen(address indexed addr);

// inside a function:
emit AddressUnfrozen(addr);