{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x29ec7d9689232be8a84416af9cf64a31cfc0c0c0f0709f625bd5360a819007f1",
    "signature": "0xa33b4d5de931f0c83b3cd03a79ab9029496c7b8dc23b299fbeac92b84a8e41973a31e6d898a8982723b77eebc77714c62558cd1615c8c8f8a9d1a3307d1eed1e1c",
    "signer": "0x5D98A9e51f6524FffE2fA89b63119aDE8368650c",
    "userId": "786812945"
  }
}