{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "870684573",
    "entityType": "User",
    "nonce": "0x3e30d134d2e6b1e08d810b14ccebecfe39a1afbbf61b56a37e79997303fec7e6",
    "signature": "0x25e639afb9a6660232780e59742bc366e70fcee5ed9f951ac48cbc651ecd3bda7cd5a593a9d4e443e259525a8565f7b26b89df457d5dbed8b122d621404c26bc1c",
    "signer": "0x4aAea60f569dCcb07000e6BE00AdcC7F106eF3Df",
    "userId": "353528"
  }
}