{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9bf47f49fe22d6ebe48b777af4be5055438c9b29a2da9ab64a9d16c274a3b360",
    "signature": "0x3969b9c6c00084e32223807af827da708cd598b44243beb77749fab14bca4a725a6d2555697c44a7be86ff0712a82c483df0b76a152211fd8521d631b6ed7f051c",
    "signer": "0x204ac030AeCcD7748FDe06DEd2F1C858Ac9b5bAC",
    "userId": "554071215"
  }
}