{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x27ba52893858042aeaa77c2674520fe40e4e00da56c0526dd205f3a94dfed5b6",
    "signature": "0x96bb638a8729eebe24ffffe598cebe9c75bb29407126cef657687d297f33c68127173561f82dcdd79e03328a0b17f6e4a93bfc07eb0cb0699b813fd5b732808f1c",
    "signer": "0xe154673C723CC8897d45911B066fF93F4105e8d4",
    "userId": "409952618"
  }
}