{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "774741623",
    "entityType": "User",
    "nonce": "0xed4acc198bdccc18ed64d72ab94bb362979339b975675a81dc45e5fd7c1749a8",
    "signature": "0xcdbd7d0aacfddc5fc43088ec6cd8421f54ffa9a959d9d5efe7b8cdaca51acbd74899d71c48bc277f06793f0e0414a0cf1152d11478c1ce64698869f501f0f3cb1c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}