Xapo doesn't allow you to sign messages nor can you export the private key.
Thanks for confirmation. Whelp, here you go, speedtuning.
OK I understand but when I reached the limit for payment pay to my account xapo this pay ' that's my xapo doubt
I don't think I understand your question.
For future reference: wallet signing is not mandatory, it's a security measure for your own well-being (we recommend you do it). Either use something other than XAPO, either forget about it.
to pay sathosi the game uses FaucetBOX and then when it gets to 100% will pay for my xapo is that I wanted to know