listen to click-event from connected button BLE peripheral, while app is in background <react-native ble manager iOS >

As the title suggests, im trying to listen for click-event from my connected BLE peripheral device even after my react-native app is killed/background mode.

While connected i have a notification subscription on my BLE peripheral device and everytime i press button on device, my app gets notified. I want this subscription to last even if the user kills the application.

The app works fine in foreground and inactive, but when i kill the app on iOS it stops responding to button click. On android i found a library react-native-background-actions which helped solve this. Here is the background code that is currently working on android.

import BackgroundJob from "react-native-background-actions";


playing = BackgroundJob.isRunning();

const sleep = (time) =>
  new Promise((resolve) => setTimeout(() => resolve(), time));

BackgroundJob.on("expiration", () => {
  console.log("iOS: I am being closed!");
});

const taskRandom = async (taskData) => {
  if (Platform.OS === "ios") {
    console.warn(
      "This task will not keep your app alive in the background by itself, use other library like react-native-track-player that use audio,",
      "geolocalization, etc. to keep your app alive in the background while you excute the JS from this library."
    );
  }
  await new Promise(async (resolve) => {
    // For loop with a delay
    const { delay } = taskData;
    console.log(BackgroundJob.isRunning(), delay);
    for (let i = 0; BackgroundJob.isRunning(); i++) {
      console.log("Ran -> ", i);

    //   await BackgroundJob.updateNotification({
    //     taskDesc: "Emergency -> " + i,
    //   });
      await sleep(delay);
    }
  });
};

const options = {
  taskName: "Example",
  taskTitle: "ExampleTask title",
  taskDesc: "ExampleTask desc",
  taskIcon: {
    name: "ic_launcher",
    type: "mipmap",
  },
  color: "#ff00ff",
  linkingURI: "exampleScheme://chat/jane",
  parameters: {
    delay: 30000,
  },
};


/**
 * Toggles the background task
 */
export const toggleBackground = async () => {
playing = !playing;
  if (playing) {
    try {
      console.log("Trying to start background service");
      await BackgroundJob.start(taskRandom, options);
      console.log("Successful start!");
    } catch (e) {
      console.log("Error", e);
    }
  } else {
    console.log("Stop background service");
    await BackgroundJob.stop();
  }
};

I tried reading the core bluetooth background processing for iOS apps and added a restoration identifier on my start method like this:

BleManager.start({
  showAlert: true,
  restoreIdentifierKey: "IDENTIFIER",
  queueIdentifierKey: "IDENTIFIER",
}).then(() => {
  console.log("Module initialized");
});

Does anyone have a suggestion on how to keep the subscription while app is in background? react-native-background-actions suggests audio or geolocation libraries, but these are not relevant for my application.

Any help would be greatly appreciated.