{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x338e264cc538546afa551efa61fd70013fa7d9d92cb2fa81f69b987130950985",
    "signature": "0x5d556bc5bedbc54eee675586d8dd11543b43d7fb981fb60553c9967ec13b470f2597d1edde6fdc3fba96d43ee1463a12c9e5a58c8c8a79e8d6afe26cf184cdd61b",
    "signer": "0x995Ca8f2d3956487967aCfd7EA849313C448c3a8",
    "userId": "227564"
  }
}