{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x72fe10ee9f234824887d0a04ec3da5cb26ae51ac400f5cbe051b69fe88079a10",
    "signature": "0x0c014edeb0d15a2f31510f6f7ad54044972de0e36b2814dfd4ff72c9ee0a9cb02b6ca8c920791c74f4a8fa8be9925e9637aa8adb2e6321ff014691ac08f22cc91b",
    "signer": "0xD21192e92319319249f3df55efE06b0809861c8f",
    "userId": "924892254"
  }
}