{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "343",
    "entityType": "User",
    "nonce": "0x9120fe0439328786a2b4d4dceef457d6ef346a9f287aa23dcb496eedf018b3f6",
    "signature": "0xf4ea6a0beab64e872bdb957ea73b238fbbed2f3df8519fff89bfa90e005428be36c418e2674237d40643f64344534f7f6102e94ae5184ae16ca38fc6aa071c521b",
    "signer": "0xb95a292B1b7a5Dad35D3B1B36b558990B8a07F73",
    "userId": "97144464"
  }
}