{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "847673429",
    "entityType": "User",
    "nonce": "0x899d7a25a76e5f84ad3b7d530fc483b5ec42a235ba8658664cf48e7902412a44",
    "signature": "0x35cac62f54c5d79789fa9d1700f42ac8ad8ee62d6848b7e45da49e09fae1b79b725de2ca3efd8b186a7cd4bd7ff28830b41bc5f83c14a6c412a8b2d3a0b2441a1b",
    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}