{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1648339",
    "entityType": "User",
    "nonce": "0x66fc0674156ed7effe53c057e70b60b8abac73e62b7ccc161939e85bfe07eac1",
    "signature": "0xe7e97e982733559566f89a1ecf5579605f0d8a6841164517f23ff2417d3e71e450c95b127fe029d78c6f4f06762cf4e3e1b92352a9634c6aba3e30f976ab67f81c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}