{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200883",
    "entityType": "User",
    "nonce": "0xc58d968ba3133f827c222b9583fe7dbe3eaa6a9706dc2c8db5d75480adc18a05",
    "signature": "0xa48e69239b5d5d6407109307b19a4028dad1b2422c51d0aec6e49121b05c9e0b7fdb50c47ceb2587b72d111ae1f83e443576aaeedfee83466e4f759d8ffe066d1b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}