{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "402520233",
    "entityType": "User",
    "nonce": "0x48ea6ce5d531fe55e8dd4fa4e2febcbdb11c5d44c75f56335e217222f90609b5",
    "signature": "0x95e32f7091137157167d768d755604c102dd71d53e0d0a64a07e790305e185b24f3cf16dabf11eafa9cb87af12b0a52937ae35f324a4553994def471dc6e18cd1c",
    "signer": "0x2F87bb373089af6C75e3362077A0E52A4779f72c",
    "userId": "582715056"
  }
}