Is the transfer of Aauto faster live broadcast number legal?

According to relevant information, it is not illegal to query and display. Because it is a personal virtual property. When the transaction Aauto is faster, the third-party platform will print three contracts, which need to be signed and sealed by the three parties. One copy will be mailed to the buyer of Aauto more quickly, and the other will be mailed to the seller. After signing and sealing, it will be sent back to the third-party platform for approval by the buyer and the seller.