{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10373",
    "entityType": "User",
    "nonce": "0x08315c89379cca2009eb4f3ef817b5b6e5b46c3f842160f0871a2ed11808883d",
    "signature": "0x054db91ed174230d2501e30109893261d961d89a228e3601c89ac4fb6008e8d00e15e4fe8c7b32ff1d538af970557de1c18e5f5a0a56ae6a43162913378d1eb31b",
    "signer": "0x90d627796C9E2071AAd9F8C20f6dCE95587F6d13",
    "userId": "560619378"
  }
}