{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "887547386",
    "entityType": "User",
    "nonce": "0x2bff769c7af4458ff788920bd02c15535bd000a0901f6e3291a2aab030d9d161",
    "signature": "0xbd0544c5c218acaa96ec5c11cb1b9224885a9c9430defeae0270dd882ed8cde202d473d525df7a6d959a4e4b6a017f1272f9ed0f7f1b9539163b3933cc8fafb51c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}