{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7d4190a8186bfdf3cb59e33d2e576ad7e137d5a80dcdcfafb9b02031491f1371",
    "signature": "0xed68c8b9584cb9889e93a6d7b23c129c523d46d678b3a57df8b4b55c8cc9ae8648bdef176d5953f128cb9873a282dabdc5ebbe7c8b9003a9ebce623e9ef0ff231c",
    "signer": "0xd31f26Ff0B6174d1C9F210280Abd5fd80476253e",
    "userId": "808636090"
  }
}