{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x792875b10e27a365222d9ffe2b74782931c6a50a4bd068c25950ff71da2ae7fe",
    "signature": "0x639b14d60b9a6cdcc211949010caa8951198545627c94c6d4ea32043412576eb51b8792ae3450f1ff276c56cf70e85bc67dd0450fdb33f3f5763b3ed1483a5491c",
    "signer": "0x1788E4C39d3326e598F16767C69826869594E359",
    "userId": "116504833"
  }
}