Oh, and I think OP made a typo. The address only contains 0.001 BTC.
And right now, I'll just re-emphasize on message signing. He did NOT sign the message, so we don't have proof that he really owns that address, even though he really intends to give it.
Without message signature, I can do the same right now.
100,000.00 BITCOIN GIVEAWAY!
3Nxwenay9Z8Lc9JBiywExpnEFiLp6Afp8v
JUST QUOTE THIS MESSAGE AND SEND 0.0001 BTC TO 1PandaF1XZ5MvJ49RjLUHouQcCrgBCvcpC NOW! 30 MINUTES TO DO IT!
Please don't fall for it.