{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18192",
    "entityType": "User",
    "nonce": "0xce3753236a37fd8c6a38be680466020311343fe473c57092da1b1ad35ecd6bcd",
    "signature": "0x7bddcb81b6c47ee3a0197a35e4df2baedfe1a548ef6315d3d6ae187c22c1c18171321ae4aa52dd4e037a7d227a9e6d73a881eb16abdc55d1ba4797d648f4198b1b",
    "signer": "0x8f3dD60187D1293D1106436e79dE8018Cd72878B",
    "userId": "712753817"
  }
}