{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "85781",
    "entityType": "User",
    "nonce": "0x190acf3b9ca814573c6ea11bb99a6513717e3f29a9112ccbb8689ccc41f5dc04",
    "signature": "0xd4ab0a4141f4fd27ab4f471a1126a13e5318f4ea860f88b910e5980bcb1a1bb62a70af08a9718fb66af23d8c99b2aab87476acefeb6f8ab6d026e28ef1d91aef1b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}