{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "972435607",
    "entityType": "User",
    "nonce": "0x42d7d9d54b5844709cee6f2bbcf42cd7200232fa630763b8033d7f23a9f904d3",
    "signature": "0xcf31176b88822ba2272f5b1f416bc6138cad04650c95a226d8f351a1acb39c7156321f2ef8535603dfee005640caf3c3b7103b6693a3c78f922aeb6ae0fe82f31c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}