{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "153928",
    "entityType": "User",
    "nonce": "0x5bbddfc9b792148e546d3a08c4e8cc76ec64fede70c2a261cedac3f73259192d",
    "signature": "0x0332ea427dd5fde68543de493299de82b2ddce9e9c575553b80896589be6845219eb8aa47aaf93499e28bd17b5a71453f1bb4cb5c921629eb8eaa2b0a05d779f1c",
    "signer": "0x9765cbE8e26a2c6c4847C1B69ABeB0B5250EC254",
    "userId": "678556080"
  }
}