{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbf9b26f8bb44d1266e1d63c7ee4a32d15f23e85b48944f31c3f2f8790833a63d",
    "signature": "0xdeb2979a049beec2079d742bef8fca5cd7240e3d2a5c9b687f6cf3bd68a2bc570ddb70781b4b1e064cb8ae10dc3ebc44a92c9d64542dc549df5817c2a3d116a81b",
    "signer": "0x7fdeEB144300AC6b1Be0E83d8f006b2D3140F73D",
    "userId": "325377357"
  }
}