Are €860 per month in Murcia and €800 per month in Castile and León (post‑tax) livable salaries?

I don’t know which exact city/town I’ll be living in, as I’m still applying for jobs, but I’ve seen jobs that I’m interested in from these two regions paying either amount per month. I’m single, and I don’t have any chronic illness. I don’t have a luxurious lifestyle, and I don’t mind not being able to eat out regularly or travel around Europe frequently. I prefer my own (small/studio) flat, although I don’t mind living in shared flats. Would I be able to live comfortably on either salary?