{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1473521",
    "entityType": "User",
    "nonce": "0xeba5a668cd9e5741af710a02af503c3683300c9e3c79fc235f1b5ae787cbd644",
    "signature": "0xc756417f5f28bc411824b2b412744f6512f23ff1b9023439858301231d4665ea2d29aef552bc61f23bc1a059bd0385c992f06d945a7f97a3d4262ac43f54854a1b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}