{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "633359681",
    "entityType": "User",
    "nonce": "0x7514377fa1283f6cc63f1ad4ddeeb2bbbb0c8e623c5652489e94f39c6eb95c38",
    "signature": "0x1266d0028af40117874c803dbf15371d28021ea31ab4ba71f8276b7b62647bdb3f98034339cd02f108b70a07f3a72a416465a09ee98eb2033b7a861ed98834321c",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}