{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x0357f08287c784ec1459c66438f3e841fc2fce79d19fca9b3e488c9c0bca820e",
    "signature": "0x6fb9f0f16f14d09afe9d8b4df887f9dced8129484b1fdfe8a9c1cced3b4bd061669218aa69e6badd08b2b9968a6d48648f9428762c2f3abe254fc3aeedb0cbeb1c",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}