{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "283478",
    "entityType": "User",
    "nonce": "0xedceae435b6957d6ecb5e8e30f22e5e7eff2e69b7aed93a3cf1f47f8ff06b25b",
    "signature": "0x6566168db70438779943d91691a06a1c847b6efbd1026a82223f743f2369ee280fe0300020424aa7e56a1d63978d6a2b6a1d2ef88a9cbda5ce05244b73f5a4501b",
    "signer": "0x580b8ce3181CecdE24dda8DddDB6a57828990d63",
    "userId": "214104220"
  }
}