{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xe99563893a66cce326ea6ac86e4d324076ad2bf8e1f413104619de5a2a9a29ab",
    "signature": "0xe5af29ba22bee913cf0821405e13a9e3316701f128823acf66b5b0cb5c959e216c568938004e09a95db3669788d4f9e42d80b507a90bdcabace478bc005700ce1b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}