The verb subscribe has 5 senses (first 3 from tagged texts)
1. (2) subscribe -- (offer to buy, as of stocks and shares; "The broker subscribed 500 shares")
2. (1) sign, subscribe -- (mark with one's signature; write one's name (on); "She signed the letter and sent it off"; "Please sign here")
3. (1) subscribe, support -- (adopt as a belief; "I subscribe to your view on abortion")
4. pledge, subscribe -- (pay (an amount of money) as a contribution to a charity or service, especially at regular intervals; "I pledged $10 a month to my favorite radio station")
5. subscribe, subscribe to, take -- (receive or obtain by regular payment; "We take the Times every day")