Evaluate the valence intensity of the following tweet, considering the mental state of the author. Present a score between 0 and 1, where 0 denotes extremely negative and 1 denotes extremely positive sentiment.
Tweet: @FuthieMasina Lol nah u subscrib 4 R60/pm. N pay R3 each day thus anada R90/pm. Lol stream n use de app using ur data. #smiles