{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28393",
    "entityType": "User",
    "nonce": "0x85a91d8a20b722d99f7006c27707e93dc09c4742a7d7f9b1fbf8e43ff1d1a57a",
    "signature": "0xa1676010d394a6c7003403740c54427e20688c7a2eb3c540a612cda3d959054f5dce03d11d123ffca6a0812c73644a11d0a69693cb8b646c1fad143ced6ccfe41b",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}