{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55552",
    "entityType": "User",
    "nonce": "0x15748afdc5bbc49e67a5df3b747fdfef9d2046ca404166785b1773bc83c5f26e",
    "signature": "0x6e0b7b2d090da7bc261585455d827d07542ec02e41c48b94a27e4b9af809e183535656ed137a91a5b9c6eb93614adb7c13d7d6565f1a137465d86f2486cd75d31b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}