{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "590194925",
    "entityType": "User",
    "nonce": "0x67b8ba6bc68b0305d0bd038d19c438325192a5ef12ccb6e4303e3850dc0b4edb",
    "signature": "0xf17dfadd22800c7d852a09484909e75bf27319e7bbfd9a9dbe9174e1f8d3505d394a311c04859d11154788898c48314eb1a4a51f328ea01095d26b589669e0661c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}