{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0xd8f36ca7351de3764f42f9e150f11d5b14f24b396c7b43c66d2f7629a025c321",
    "signature": "0x7add00112b6d02ac9405954ec5946be43d84be7a78035198711b53e0cfaea2bc53ade2d5fdd0668168e36c7471af9027f6832b6195700b6a9e42038adb63d7c71b",
    "signer": "0xDB1529DAEb2cB5c0C5d2dEA55094A5c58c08df37",
    "userId": "854973001"
  }
}