{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x74d277fc74dc1f9ca0f34a222ab754d8165ffe9ac07a3a698d910f0fe8cfe8bd",
    "signature": "0xd81e77c738385fb0162aa97e3251c4b46220d87d756d24441abcedc25c44444958bc5a00f6f21e36fe5a644785278b70cac02c712441be45ed53797d04d66c4b1c",
    "signer": "0xA27B00F57fC7B3E81c4d7C4919aCec97E1fCf667",
    "userId": "329513359"
  }
}