{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "109089",
    "entityType": "User",
    "nonce": "0x9de1d5fd738953ae610b820e684f446f0daef2ca28977af1cd604f2f21cddcfe",
    "signature": "0x6f6815dfd3390b523a7ba2fa26b72af70edf4048b02f39c190543d758ecf12972e912a9dd5735bd6571939f7761bf4d780a5d4ce4035470e3860a99c8c19784f1c",
    "signer": "0x67E321241D4e44e5aB5D1c365505f0F33044C7BE",
    "userId": "460631539"
  }
}