{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "380629",
    "entityType": "User",
    "nonce": "0x02b894c5a7a8bebbf2cdab4bd54e4f999c08c42ccbe197c6f342e19378d4dc46",
    "signature": "0xa964ce199a5de37daf55775d2dfd93b21d1a8a269fe6690a21c6082714cf4a402c22c78fb7723de5a15747ade93856644e73763de2e4a603dba8590eae29c0a81b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}