{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "599751364",
    "entityType": "User",
    "nonce": "0xb0955c6a8cb9754be5a54da076d8bac167bca55d7e7eeba25b9fc97031c01165",
    "signature": "0xc732d98f706c6d361adad63f302d80006d281caa3c19d34f759a81adc4df7fe4592233dc8c1fb8cb7f1196e77e7fabc04cdc00c7f1233f8f4ae1a2f538c818241c",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}