getint64 incase assetamountfromvalue fails
getint64 incase assetamountfromvalue fails


Former-commit-id: c18a80bae39e0a6bf1661e6b797f7526c613605d
syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin