{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "735463452",
    "entityType": "User",
    "nonce": "0xcd8caed7c06bacbe95d04e7a96f378221e754dd176ac7fd0f9f3dc8f9dcf5fe1",
    "signature": "0xaca305e37cc79dac34dc6a49fbd523ade732880f541b7b52d485a4940118ee0d12d39b0b1c5ba52eaf904e727cb57226e814c5cafd45a5e33583260f1e3f34031b",
    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}