{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "908791433",
    "entityType": "User",
    "nonce": "0xa58a1778912e69c786cc92f71e06c6a4803c37db15638f2fa5eb0016800386a7",
    "signature": "0x753f95e77fe9dabfea5c3643976f1a0b2d68481a0d88c60b6d8e961098b73e6916d4880386cd9f4b9774fd512275dbbecc78912aa4c30256761b345c413a31291c",
    "signer": "0xA27B00F57fC7B3E81c4d7C4919aCec97E1fCf667",
    "userId": "329513359"
  }
}