Legal analysis: the agent is the person who is directly responsible for handling something, and signing it means agreeing. The handler belongs to the initiator and handler of events in the department, and is the person who is directly responsible for handling something. For example, the student's grant confirmation form needs the signature and seal of the local government department. A manager is a manager, that is, you are solely responsible for completing a thing, and you have to bear legal responsibility.

Legal basis: Article 490 of the Civil Code of People's Republic of China (PRC). If the parties enter into a contract in the form of a contract, the contract shall be established when the parties sign, seal or press their fingerprints. Before signing, sealing or fingerprinting, one party has fulfilled its main obligations, and the contract is established when the other party accepts it. A contract shall be concluded in written form as stipulated by laws, administrative regulations or agreed by the parties. If the parties do not do this in writing, but one party has fulfilled its main obligations and the other party accepts it, the contract is established.