{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "8706",
    "entityType": "User",
    "nonce": "0x3814086479c1d223f4ae758f6542e83f8bd3ea0bba1225eaee11d3a15ca5b7ab",
    "signature": "0xfdadf189d71a8f6bd661c4445646371436c91a36b1d9ad41748546a0afdda38c025717e33d2e196e3860018d7ddf05f5532d6fa66d039d688717680cc8c9360f1b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}