{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa1cb8bdeb21c211cd91d7a784544aabacf785a038cc9e18e2a4f0944ea17416f",
    "signature": "0x14463e985ab7eb38d011c98efed709e070a6ca15006c1ac9391c514826eeeb02382139e7fc1dd6aa3eea5b3da2046d1f2a9b6897b8f0f9ea7c1a05175b41827a1c",
    "signer": "0x088c0d1bE253E7ca85CD6A68B6d880b2522c0D08",
    "userId": "342000427"
  }
}