{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "78315",
    "entityType": "User",
    "nonce": "0x0678519aed78ab4a2d5e3b46ad83ef64439ee371cc7de0c24de4e98113338dbe",
    "signature": "0xd10f78d10e97a70214440fbfee00bf9123160647b979c85a04f0d6d3b7e7f6344d9b51871b7265efe15340d5da2847b89b069289fb755efbd68f7ae9f2e679091c",
    "signer": "0x367680E9B4EfE77a6636091FA6c2c71749Cf7C60",
    "userId": "40274"
  }
}