{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "828403040",
    "entityType": "User",
    "nonce": "0x9faa96f2c8c23a54b89a01f9ebc2ff7e57dccf77f71ed93a9bb26835edbb2ee1",
    "signature": "0xd7540976b3535cfaecf9b02a1dcb981a34e91bd95ce5b41459ba661f043c15917d986c8ada63468d28015c075ec06a7e40d0b7d6a51cf6ea4f0fc5acb052bebb1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}