{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0xe03933d56df03a3cf24b6f407efb942d1738c37774a982811b2ab9f3061cc7d9",
    "signature": "0x62b01cb261deb8fb610a7ba33637002f4c6294fb3f15e316b01bd397e0b3eda117e5a98a9d27ce23167e9c7105607a644ed4b45ef9c2765e59c0260f445ead231b",
    "signer": "0xFE17Fe2677AF57d35AbC9CeafeA4FF91C4542293",
    "userId": "934065758"
  }
}