Legal analysis: A signature can be used to sign on behalf of others, and being authorized to sign a contract on behalf of others has legal effects. A contract can be signed on behalf of an agent. If it is signed by an authorized agent or does not have the authority to sign on behalf of the agent but is ratified by the agent, the contract will be valid. In addition, if the actor has no agency authority, exceeds the agency authority, or still performs agency behavior after the termination of the agency authority, and the counterparty has reason to believe that the actor has agency authority, it constitutes an apparent agency and the agency act is valid. Whether a contract signature can be signed on your behalf depends on the type and importance of the contract. If it is a very important and influential contract, it cannot be signed on your behalf. Civil subjects can carry out civil legal acts through agents.

Legal basis: Article 161 of the "People's Republic of China and Civil Code" A civil subject may perform civil legal acts through an agent. According to legal provisions, parties' agreement or the nature of the civil legal act, civil legal acts that should be carried out by the person himself shall not be represented by an agent.