{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "279",
    "entityType": "User",
    "nonce": "0xf928622d12ecc316f2bd92ad0cae641b1072793cbdbeb2a5ad290ff0f9ff582a",
    "signature": "0x3012abdf34f5c57a6802a0832be00b7af62ab1bbd1d6266df1a9f6acd98ca8ed7c4ad9fcbb4cb4fa20d6103a59e30e9837716cb9a9e1f3f539c8941f950fc5661c",
    "signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
    "userId": "890889753"
  }
}