{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "557210595",
    "entityType": "User",
    "nonce": "0xb548f0f5506560b0d765b70146caf35e8bfc96c808f25e6c35aa1482e26c235e",
    "signature": "0xeff29e212750dc0aaf47f79b04e8c36c57fb5351d7d18da8a6bb89c7a0a215484e41d85afda656ae775e77127ad0009dd53bf56c27b3c548c566b0f6d87835801b",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}