{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "734659738",
    "entityType": "User",
    "nonce": "0xb18bc4048265b44a4227ed1abd4888722ffa7d005e43a1b6b631a52a28133060",
    "signature": "0xc8e05fc2416b800c20cde94224b6ceddc4de852b3f01cdf445063949657a05900f1f69cb23b91daec3290e480ad1901937de0c619379b65115cf1869bdceb9e41c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}