{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x8c39e706a33c81b9f8ae451c95745a1294277bbe82d3bc6b9584ad043600cfb9",
    "signature": "0xb71cbce76d1b2c8f95be1ba09bbe2e232065eaf9e19c2a65a8bddd9c865b1cdb5480e76ff0888baee67f0d8273e8a5d420f61452aca3fd29b1c2e7e25e7fd2a71c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}