{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "823613833",
    "entityType": "User",
    "nonce": "0x02977d9b443f908e0993d01b808854dcda22eeb7cb57222934dc3a2a946d9e07",
    "signature": "0x77a795ca47b621f8742bfea87228cafab43d5c3c0fbdf9a1e1e163d5f21677b736fd259f2146ba4d4c7b233aec21b67468976f0476b4d220dcdd5c0bf83824381c",
    "signer": "0x3765700151BA1793CFdF9F4ef4c8fECA3Ea076DA",
    "userId": "957835565"
  }
}