{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xae043baf2cc6b03b6309bbba084df36ef50c51f70a81860eed225ee760022095",
    "signature": "0x3329bd5aebe7022ef8246349ba6bd9f2ec5d0760a6f70cfe7c8fb7acf5322a946c9702a2b787484ee385a164095b1c3462a0330baf0a95d6d533efe08343c1d01c",
    "signer": "0x0178E8C15b6BA5d64D168E1b28Eb25f9A7a768CB",
    "userId": "528770716"
  }
}