{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "89655",
    "entityType": "User",
    "nonce": "0xd30e97528b4350e50cff04e805b603bf7b37a4d5a2b5b01e1bcbb2c2ae5f935e",
    "signature": "0x6d61eed673a4906de9249dc3ee2527731fc9da6b15fdeda0ac5c52ea8f1e0c257d31e7db7c12c635b6b16fced6d368e1915d1549585d3a7f4d4b51ba53779f5a1b",
    "signer": "0x2c20538dC7785CD3b403dE74b4C24b9364f57A30",
    "userId": "55500"
  }
}