{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18985",
    "entityType": "User",
    "nonce": "0x90551c87f2c14f1a9b58a8327ba4af8dcacc53d6dcd447b3f234378e98e77f3c",
    "signature": "0x70008f6f616ac5432adc6f2ebd09aaa9aa8f9a9cdba590ca8c9f2527fd8e2d675f0a4cb9ed9d0a92ea74387f72d9de800a1f08c7a946fc85996d18d5347b94ab1b",
    "signer": "0x2ACda02e37Db2DC08f82aEFAB268F0610974bb3c",
    "userId": "416239376"
  }
}