{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "140",
    "entityType": "User",
    "nonce": "0xc95c969e2dd12c5305ce3d77e7a7202ece93b524a6c3eb4d0741e01d9f9d58cf",
    "signature": "0x9cff62cdd4edffbbad8aba33b34ca670ce798a30d71df40917d55990172033f520154048d5ec8a544f43cb40cc662ba83e56ef68cfb3cefaf6c29aeda2774a8f1b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}