{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "17689",
    "entityType": "User",
    "nonce": "0xd3919b03ac368fd23c48829de84bad414d1f464fb0d18b553af5acbfbd0c78a7",
    "signature": "0xdc522dea403af9620f4b151a5e97f125ca8a3bcbb658ce483b2503b7e5b0032321a81cf1ec2abd4bdfabcdebb1fb2cf94f58bda7aa826e3a12c77586a9eab1201c",
    "signer": "0xC35123bF05ca0B3A7B333c53E47bcd9f9DA864d4",
    "userId": "33896318"
  }
}