{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50264",
    "entityType": "User",
    "nonce": "0xed1437472f339ffee8dcd64520fd9daaacd707dcc8549718ebdbc13b28913442",
    "signature": "0xf9a7af9ef9c1b848a5a72984702ad102caa0784645f4188e23d52f14babc8df47e5c2ad2cc8e881c8fcc02ef24d146cbd63cd69752840ed79ca2a1f3807126e11c",
    "signer": "0x2BD0c2111290EB20B2843e8b1c0f25aA5cd52a6f",
    "userId": "618242981"
  }
}