{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1419372",
    "entityType": "User",
    "nonce": "0x9d68ac631494cf2afb4d158aa411e0a9933571bf55612cf9e82fce8d593c1f49",
    "signature": "0x810d56fca68e5514b5eb49131a13d42b3f3f956cb21a7145d54f6deb54182078548540dbf1a971477d3c9298c6245a86ec3d7d2f2a8cc11824aca2d80df9e4b01c",
    "signer": "0x03b70C3825d7b9e568C53C89a738061d855d0dec",
    "userId": "578849678"
  }
}