{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "335878078",
    "entityType": "User",
    "nonce": "0x956a206dc0253c30caa73e00c63720e2a2a990981748e3dedce09d8d43a25859",
    "signature": "0x031b735bb8aadf5784def72ed603b09d8080d0e49b5c37a49ebe8f10b08753271a44736dfe0f2ab4f09c280d283492f185f066cbc4ea52a58ade8378f97bbc6d1b",
    "signer": "0x044FC5a5dDb09Fd969Ac4aa606CddF360FE384dC",
    "userId": "144585121"
  }
}