{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74652",
    "entityType": "User",
    "nonce": "0x9a4e3000f6dfe7b1f84a12e8734aad43ea6abba9de5f0d733f957d1491ba22b5",
    "signature": "0xe10f622ce316a7dd153d0024786b0c626b40eed58ee08f8a9029f5d841a4c7a91566b0c0ff7440f9708f994c347da3f0c183024680ba3f4a3107507e968857c71b",
    "signer": "0x92ff18F46f3E7F4f450c570590f93f50E60a9925",
    "userId": "522564756"
  }
}