{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xeb4ec425fa6047fbcbffab6829d0d1e3e38af38e570a1f187c550d0eebdfcb99",
    "signature": "0xe6ec891b6b769493cbb2bff88cb42940c0c07b52b18c947efc6c140fc6933e892b42f94ea4800c6b42223c85153a20d4319dbdddcaea667a5d626ace102f70111c",
    "signer": "0x6268f3F36E0fe8D3E139bC6d32d7539887721848",
    "userId": "418312750"
  }
}