Sign your name on the physical paper, and then take a photo and upload it.
Sometimes you just need to open the electronic contract, find the electronic signature area, click Open, and write directly on the mobile phone or flat screen. This is the case in most cases.
If you have money, you need to sign it, then take photos, then upload your ID card, and finally approve it.
According to Article 2 of China's Electronic Signature Law, an electronic signature refers to the data contained in a data message in electronic form and attached to identify the signer's identity and show that the signer approves the content.