{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "868248368",
    "entityType": "User",
    "nonce": "0x24c75fb8379c7ee9a760475f6d456f4901729a4163cb29833acf8a0fe34d5cfa",
    "signature": "0x658ca87b8edff07d6ef42d6ef30ef81ee260bb4e8cccdcf6ca65f64501898b7d2a38baf789063617951e76113a7a27c694a76268170ae24aebbd45a62fc21ede1b",
    "signer": "0x34F50BD1d16FaA0390f6037c86b7D52Ff6629a25",
    "userId": "739630124"
  }
}