{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x83365848e27b49918c035d2502e6f87ac66f63bc8067cbf75c718f4d8482b216",
    "signature": "0x0b670af7ac5cf2c808468ca29ee70b5cd0fd6a004eb91e002a215461aac618397a2886096d6d57ebce5030d8c5762cee513223050e7c3fe29eb89cd8df13651d1c",
    "signer": "0x4De7cc7ba0769e4AA378E0a714BBc26D83140098",
    "userId": "826170845"
  }
}