{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "979770917",
    "entityType": "User",
    "nonce": "0x648fffd20a9adcb70a9e92f45d25bc19c458e3f297319a1a435913dd7b90bec7",
    "signature": "0xd3aa638ada17293237345cf62e543b8747187e438f9b2394d232020117971dea05635d4c68e8f26ab7d6ee3c60254be14f0e3d05871f6c171d4732a7123495541c",
    "signer": "0x9c5e7F56Eaa8b6eBFA8F0e7231898e369d2e0b18",
    "userId": "767121958"
  }
}