An electronic device is provided. The electronic device includes a communication circuit configured to communicate, at least one processor operatively connected to the communication circuit, and a memory operatively connected to the at least one processor, wherein the memory may store instructions, when executed, causing the at least one processor to request a management server to encrypt a push key received from a push server, using the communication circuit, in response to the request, receive the encrypted push key from the management server, generate at least one transaction based on the encrypted push key, and transmit the transaction to a blockchain network.