{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0xa8e9e9cb2c930aafc56dda84bc62f6c5d9d6ec03268deda2f0af67af4e5600b9",
    "signature": "0xffa5d2a9d875184e90445c846247799c9f2f948318c8277333df7ac3b383c3b2223d2917fa193ed00b56f096bd8a8421d24cce99a6d14e6a9a21f0ec43eb7c231c",
    "signer": "0xdC422De896Fb6f2Be03182bFe11336856d90e5bd",
    "userId": "49186073"
  }
}