{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "320366",
    "entityType": "User",
    "nonce": "0x16a87b3806951a6be22a90ffe5aa8c04e3372fed71c4d29838889c76d91ff6b5",
    "signature": "0x633250d0577bc538740a384949d7be87fd9094a32baf1f2adb70bf07c7bfca2d0e4928a71794a648991ef8bccc69b08c40c7dce8f49274106bf04b076592c5571c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}