{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43323",
    "entityType": "User",
    "nonce": "0x6ced6d912b93f89686bd6c668552e40a705c610fdf3afe469e90b2c678d93493",
    "signature": "0xeb22a7fba4da124be22e9f1f845a4e569b27f0e5efec33dd2c7bd38f5e0142cb2e2af623f54bd868267de258fc6096b6bf47f839491c63e43ba3a0d390de5a8f1c",
    "signer": "0xd41d03fabc8A113A5e32266E5645Bff54f429099",
    "userId": "154510400"
  }
}