{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5f4b37e40cd2f8fc792db8349b8f5834acce6003b5f065fe35684cd0e1feff34",
    "signature": "0x3f138112c46e37e0cea1115df02f225d504a5fa776630891cb49b32239595fae53a8d2568168effbe95549a443d2ba28a541f657e371653e6086f08aa35137711c",
    "signer": "0x6234Baf9d747Ace183333c71Db5A491f1d550117",
    "userId": "622319860"
  }
}