{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54120",
    "entityType": "User",
    "nonce": "0xba101d4a64bae4b8848f05c55ae3ca77a85fb760b9d8d2ce84518fa5e9d1c153",
    "signature": "0x43458d366d1466ac2a1ce17ddd92b645d619eab13435267d3a816ffdb861117c181bf993095cdf0ba5e6a52360ac52569af783ab882054266598aaa5055ac9311c",
    "signer": "0x48ECe992edB7C739B36f37DDbE8Fe352996B5A56",
    "userId": "183063753"
  }
}