{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "37892",
    "entityType": "User",
    "nonce": "0x075883c2fde8b5ff86fd419adfe30b7347505f901522480f9a1ac10bfb14470e",
    "signature": "0xf92753523b22deec11d92149645472b99dacf2b67ac4a4f9cc7af9a58182352141216e08573001a83c4c81a29d8a3f8f9bdd229c451f73ca436ef8bcc9a643701c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}