{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2bab508518521b24c24c2460f4d36707a47078b70f4a04912f86e0491ca07bfb",
    "signature": "0x9703de10cdc45a4ca38f2b029996e897f8c64602e89f4d1e1c179790526d64eb6353be7cfcb03e7c7f3218d8f8c64cfb5357a7701fa6a509274ed87a83d0c0121b",
    "signer": "0x1369a4A040e641C0584EC5255caBBaB0b4cee85c",
    "userId": "666964391"
  }
}