What is this address in JSON-RPC example

[vitoff34]

In the json-rpc examples the client.request.request needs to have to params: address and message. The address is '0x1d85568eEAbad713fBB5293B45ea066e552A90De'.

const result = await client.request({
  topic: session.topic,
  chainId: "eip155:1",
  request: {
    id: 1,
    jsonrpc: "2.0",
    method: "personal_sign",
    params: [
      "0x1d85568eEAbad713fBB5293B45ea066e552A90De",
      "0x7468697320697320612074657374206d65737361676520746f206265207369676e6564",
    ],
  },
});

What is this address?

[glitch-txs]

Hi that's a hash, but can be any message you want the user to sign. Second param is the user's address

[vitoff34]

Thank you very much!