{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe70ff47066debfdda09b3600d6937b4ae871e730d0211ec0e9abac936348a918",
    "signature": "0x8bee32f32c093aa29585396b8717ce0d9b65da9f08b28df580318b57c92adbde21208f2b59f8ad70bfa379aa082723197e39cc20be3ac2991f9a9376cda0dc581c",
    "signer": "0xC8E98439cD764aDe3cff6B018a4Dce2806a3a464",
    "userId": "621774029"
  }
}