{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc33cdcd6ba7eb377709f29d398641671be03a0a994b020d50c3e57bf1344ce67",
    "signature": "0x6ac7f0d84da18c6e672e098340140e90f9d113510bdd12a2593e5b9b8be06c0a0cf815cc7d2057c19a0095ecb6324e50091dfb61ffaa287e716e44f8f6ac2d581c",
    "signer": "0x61663E0a4fB412dc8836B37827DC950A9AF999cD",
    "userId": "736432539"
  }
}