{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x40c17cbb6cdcc7629760e6deb9296a4a52d4b384a46100506a02972ff8e2e713",
    "signature": "0x9a27d6f2388975cd990e478c3144121327cb97eb7e987cbd6b12dd0f7d840bf7529bfa59dc489d087ca89d081e3b4b8cfdb511c57070f0cea2f08bdf6de7bfaa1b",
    "signer": "0xEFAB3332CD5EA33e9817aa57B32CaCb8Acf973A4",
    "userId": "407216161"
  }
}