{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x35973a481208638bd2494357bac8b30dd0e5111fa457335305e4ec5882a72443",
    "signature": "0xb50d9b47be28ec79695069d924e8388d0e79feb8245ad105b5bfa961fa7c6ba30abbf6ca03d6c965b027f92ca65d35964af26465f272088ef5e69a9edb79b41b1c",
    "signer": "0x05A90424E5b105Cc4D6a3167C407f7A3Af93bc81",
    "userId": "140495132"
  }
}