curl -X POST "https://base.sepolia.api.4mica.xyz/auth/verify" \
  -H "Content-Type: application/json" \
  -d '{
    "address":"0x1111111111111111111111111111111111111111",
    "message":"4mica.io wants you to sign in...",
    "signature":"0xWalletSignature"
  }'

const body = { address, message, signature };
const response = await fetch("https://base.sepolia.api.4mica.xyz/auth/verify", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify(body),
});
console.log(await response.json());

import axios from "axios";
const { data } = await axios.post(
  "https://base.sepolia.api.4mica.xyz/auth/verify",
  { address, message, signature },
);
console.log(data);

import requests
body = {"address": address, "message": message, "signature": signature}
print(requests.post("https://base.sepolia.api.4mica.xyz/auth/verify", json=body).json())

package main
import ("bytes"; "encoding/json"; "fmt"; "io"; "net/http")
func main() {
  body, _ := json.Marshal(map[string]string{
    "address": address, "message": message, "signature": signature,
  })
  response, _ := http.Post("https://base.sepolia.api.4mica.xyz/auth/verify", "application/json", bytes.NewReader(body))
  defer response.Body.Close()
  result, _ := io.ReadAll(response.Body)
  fmt.Println(string(result))
}

{
  "access_token": "eyJhbGciOi...",
  "refresh_token": "rfr_...",
  "expires_in": 3600
}

{ "error": "Invalid or expired SIWE signature" }