{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1391666",
    "entityType": "User",
    "nonce": "0x3fb8a55237162aa4d2dc648def0839cd8aa88d7fb0ffecaafe248c847a8f2cb2",
    "signature": "0xea0290e338fd9cb36dc82b8427e9e0163fc29d4ba8b18659713a416d2c289a6e26c9eba26baf31c4394e2fa726905d9432d6debf62b15e60a4e2b09fabd7bd131b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}