{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "78483",
    "entityType": "User",
    "nonce": "0x5404e95d893af98c667f9d90472afd7573869d10e6ec670b22dd71eace1ff849",
    "signature": "0xf18b66a7d0566453bee6809d6c87c7b2212cb34caf6765bd094b0925996f44b41f54e28455ba77a7261741c619d51469678e6b9b81646ab19075cf5e047409191b",
    "signer": "0x4ad870a0C318214b4796d1464BC8Dc57C6b84C12",
    "userId": "408505072"
  }
}