{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "845727327",
    "entityType": "User",
    "nonce": "0x3d640125d89d049da1dcd3c7c9abbf3e7385a3a733f8b542e30609034b9209fc",
    "signature": "0x7cdf4b0a7db1346aea0fe39c2173319c7aabc89571cb336ef38877fe042d47634058f860f8ec6c0f5867ef623985de989ab6134436605763d8083f5935ebc09a1b",
    "signer": "0x044142FBd4AF7201d53A9BD1d822768a436d6314",
    "userId": "683311144"
  }
}