{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7d8b5bdeec50af9861caf229dc8a5ea87f046bde459f955582c086705619b469",
    "signature": "0x171ee717cebfd24f31445ba7e8915130ae375aec9f1e86d4e273fe6f6c6e86fa7a8b8e6724705f59fabda5f23e5c6f883a993a4420a88beec3858acf0667943d1c",
    "signer": "0x9BaE2e1849D39772019b4AC3468e938a232f73ee",
    "userId": "948584098"
  }
}