{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb9f36958aec1c48cbec574b9850e22459523afc6f461367e81521d04405d88e4",
    "signature": "0xb8b7bb39161114b918fe1201734626dc0c22068a04050cec63bcb83b7e11f1e97e1523eff94defbbf8e236f70e80ce9c1b6397ccc8a20c93cfff81ca763e3d3a1c",
    "signer": "0xC982f8B52eee7F9710Edeb184eA0a7401A3C79fC",
    "userId": "401235853"
  }
}