{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77551267",
    "entityType": "User",
    "nonce": "0x8c9d16f9c01a1189d23b2a418182c2e35a372a22d89262bec055756dc68d2820",
    "signature": "0x6e0ce4aad4b9cbf1256caee17c35cf915bb68da35e67e8a083012689e925bb822bacc1dc3a90e64a9241e709c8d7cf5fa78c18e236b6fce5c669788660e41ae01c",
    "signer": "0x3eAa3E814AA10Cf2145F714289ef3b07f21AbbaB",
    "userId": "73735"
  }
}