{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0xd7e742197138e4f55aac41a6567745204c5caf1eb11555a75b40de56a1704a72",
    "signature": "0x690bd84fd1ce5e821e7b46466947486f9d36e93c0fb068f9490022b09ec6e6483ec6a7ed4733c627dcfb4f7fca5cbbe001aff7b8e5969dc7f6ea628c65ec42511b",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}