How to import private key from any wallet?

First you have to create a NinjaWallet

Then you'll have to extract your private key first. Go to ADD ADDRESS on ADDRESSES tab and select Import private key as segwit then create.

Open your Unisat wallet and click on Setting icon at the bottom right.

Click on Address Type and change into Native Segwit (bc1q..)

Then go back and click on Account 1.

Then click on the 3 dots then click on Export Private Key

Enter your wallet password and click on Show Private Key.

Click on the clipboard to copy the WIF Private Key