What is Hevar Android and why is it written on my phone? My S6 Edge phone's lock screen shows me the date, and below that two light bulb emojis surrounding "Hevar Android"

What is this? A Google search showed me that hevar is a Texas IT company, but nothing about Hevar Android.
Enter the settings app and click lock screen and security, then info and app shortcuts, and it's the owner information section.