{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "336459",
    "entityType": "User",
    "nonce": "0x9a1273408bfb0a399ee1dff69399526af8dad107315eb64c06749eb33f3dd3de",
    "signature": "0x935efbbf50a32fbe230dc6bc18d0e9387bc79223a19b132d3b73a1177ce117c55ab64884c0c4fc701183e18511bee1d6f5254c70b19f907a2978bc3b182e70de1c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}