{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x51b9ceb4d7b21a907e0fbc182aae30dd604f1371b9905ecdf200e56b8b73c501",
    "signature": "0x41c6e2f0e55f7db29b75cddc9f7cf7f23db25a44579ac3c346b5d62e0b289bb36e7e7a5de27299bd41724aca2e856c0d66d0c9d35d5dd8d6a8999ababc8dae361c",
    "signer": "0x80D0E5dEeB82e359cAceCcD9A79C6F542bCCB8a6",
    "userId": "858889163"
  }
}