{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "327534718",
    "entityType": "User",
    "nonce": "0xcc5e01f4fa67d49075da536b25bdb27b3e7cf057775ac19fa21b97ecf4eb5938",
    "signature": "0x4e0167a0da3a29efadfd929b4b89de87358faab19632b56b553c5d7411caecc73944778400d74a8ebbbbb71038258dc45e4955ceb6edeb58ef742426940246ec1c",
    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}