{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54988",
    "entityType": "User",
    "nonce": "0xf7b5aac8e5903ed94a50e1d619c61a2c29b23c1f795f414c440d4e5d501626d7",
    "signature": "0x9fa284e03340944d08c66dacf7eb4c134c7cff0f67ff5f85e5d7c43c1baf2e91784964f8ba570b2bdaeb27b67e3bffb5efd659de50879be22634c68a4f8486f21c",
    "signer": "0x7A4d69fD043239352142140B3861d9A9a89731Cc",
    "userId": "363053902"
  }
}