{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "49485",
    "entityType": "User",
    "nonce": "0xa3d1021721daae134163636aa930de4eee6b5fc34d5d9e18112fb22e70db568a",
    "signature": "0x7398f7b800f2171c340b564b620fe11414d40c38cb9f66f5c0b18c907bb8fa2774847c8c0a50dc4d1168fea51f2aeba24488276546f36412ec01faa50bcff1ff1c",
    "signer": "0x7fdeEB144300AC6b1Be0E83d8f006b2D3140F73D",
    "userId": "325377357"
  }
}