{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "396557",
    "entityType": "User",
    "nonce": "0x54710445ea24d609d8287e0cf2f1dd6a452ed9b4b0ae387b3face54e6666da78",
    "signature": "0xc81eda997e95acc0a37c052347b5f6b1e5c961d45f36f1359b08184695e69a1a4a43893d4fb5a416d588b52ed01fc67f1756c4a23272d06330078d3c4e37713e1b",
    "signer": "0x69f11622ae51A55c34462DAfaAa5b4E7e77AB644",
    "userId": "513195827"
  }
}