{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8c614ea205b69f92a0d6bc95a75c7d90d4e0b532e543bbcb6ed88faed92f39e0",
    "signature": "0x7fc30b47dff38266c3346487484f315d0d28516ec7df5a64ee407a8285fd107449a4402e158cd5bed45a3ecfed228de52d582bccdc8b67feea93704d8a1e52751c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}