{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8eda0cb5617089d14440f9207ae0ba34b43e236fbebbea57c60c88d27b61b0b8",
    "signature": "0xd5ee1864527a9f7654c23c550ebdff1f0d6a5d82e8a20a43daf03a70386de8c87df01821d35068aad32b7c462b7c340eee19f354b3a4d85a733cc6881c33d59c1b",
    "signer": "0x8bf0dC9fa6Ad8F832405194cB45F23cedA3e9486",
    "userId": "234632837"
  }
}