{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "730225845",
    "entityType": "User",
    "nonce": "0x213f6d495e30d50d3e7b61c438e86759cbb8b69675e316e30345d52185ffce90",
    "signature": "0x3ece4fcddb67a8c28c7dea3e015ae7d4a095a0b67a8811746dc0699f7d910ba73bad94f782da9a72735d5cba4d91948c770e775f74f02650c8c9fc72a2aae4ff1b",
    "signer": "0x34Cea527C1dc0575a5B686515aad0Bf8F3b5f97E",
    "userId": "13589021"
  }
}