{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9b9f5e857d94e5d7bc190d117210ee5f54f06bd21ceda25328e765fdccc3ac3e",
    "signature": "0x1bfcb6b6d312e8d75aeea0893b6e0defb84a17f55624ae8cca41905985c0590c342bcdec27488f5d826fbacb28823f692578a87ede48f76b1d38ee3e2f4903981b",
    "signer": "0x283a6Fd0bE176865B404dfc3B2805D3a2701d62e",
    "userId": "484365174"
  }
}