{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "782825894",
    "entityType": "User",
    "nonce": "0x3039cd42b3cc4a9c2a096ddc48156f71f44eaafe59c706f322ca759e2cd8264f",
    "signature": "0x4f011319824684f0d9245faf9a29a908b57db4876cc3a3a8f93b3e9cdbf94a9c62c07433c0337c3c0cca2262d90c68ec5c0504ebff1a77a2496b9110f8c1cd651b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}