{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51449",
    "entityType": "User",
    "nonce": "0xce24468e196215b35b3e5426ad722f479d796737b0f1d79b25991079dc487416",
    "signature": "0x28d24210bfa4b6e34f5d36665aafba1d91cf40b34a5a52529d7b3614a11d4efe6cd1e873102fe19ef0c203736a8961cae71884d4de6f1fb5dc578ed01bc661d01b",
    "signer": "0x16BE3cc7Ee03C75AD10a94fb7234B045D351825c",
    "userId": "66529124"
  }
}