{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x9366d614ba2db78f2714e6fa5ff20bc54b19b53a6048de1fb60e026ebc4b9e86",
    "signature": "0x49751d4abe10243f89bf9c6e32cb162ce4d27e239a1832471f52a68b4bb0aa26277fdf7f85d2844fa6ab3ac17d2f9d7e0e9dc18c1679a2df562e5f5276cc1a771b",
    "signer": "0xa927B17FfF93f52Be6CdE4758a1f1cbE6a35ec51",
    "userId": "850733672"
  }
}