{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "599799",
    "entityType": "User",
    "nonce": "0x7b0533c27b7353439bdd6cab2a84da24b2c44fd6a9a50a037814d625711618dc",
    "signature": "0xfb6e6e15128d77463ca98b82ac67364bf935bc59f6b7602d507a9acdb7d69fd940179cf4518233fb093d381aa714c4474d51fdac971629a018abe59e08e4195a1c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}