{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x7ae545c7de6db0c7b6cdb7b3f89d0933605624ae06890f52da10d1ed55f355bb",
    "signature": "0x083401167c02c129eefbf00812647f667b733e4a73a2170b07313074b5ec4ae11a2b59ab286ff2f9d6eaa5417f1c18367944b42824e0b2c19d78a79e02fa4a0d1b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}