{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "212542660",
    "entityType": "User",
    "nonce": "0x5377d36569b5f078da58f07d90a477e27aa0a3954ae62dcfe12574eddf3fba3a",
    "signature": "0x6a703870872a5a96e7e5a4b5e8947465d5d4308bf0da2ce53d227974de61ffa07472b40aadf302a3927872e73bcb564c58842e4e1d47f37f5b78f054105562521c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}