{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "172938",
    "entityType": "User",
    "nonce": "0x45fd98c67a5f62a030d245213de8f57d4c453bcb1d37447d74302a464657e690",
    "signature": "0x377e355bfa40343d6fb00f1a52c358e01ebcb607dfd943d172e9f4c7aae4fe5c37d028bffd22b94f8a04779bb2483323a7fcd7daa253e782deb3e33927ac58921b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}