{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "528688046",
    "entityType": "User",
    "nonce": "0x662a22d874652ef5cef007ba4fef965160a1109706f2485c62c56b47af93894e",
    "signature": "0x58833d8b9e1dc3bf0110a764697a26b4de7f027376db1ad25337969bf994b329191f37eb096eac1748e651357c0b5b234a8c4472c29123bc931104a1ef535b291b",
    "signer": "0x38c65d779554649264FD5A23B412Dd6237e675c2",
    "userId": "839739705"
  }
}