{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "619242476",
    "entityType": "User",
    "nonce": "0x41f629d210c9eefb900e34a96973072bfc098214d928114b668aa71473ec585e",
    "signature": "0xf6e82476715c1c9febf3ea30bbb5bd637006d1442a4c5dc1f9f2567f9157e09d387e834bc8c9fff84b17f3b7616d8ddcf5f318e090d281399061570742b43a301c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}