{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50672",
    "entityType": "User",
    "nonce": "0xd45a1491b9252eef6f67fcc21a101323696a23e8dd66094192db1e79d436849f",
    "signature": "0x8745b4e944c878ec6dc6828cc4998004eb15d26ffe3651e62c090125adceb15c75c6d23a4f33bda7c5c8f63fdb7f3b6abb31c4c56a562ea9fe60bd78ca4bb8771b",
    "signer": "0x5A4a438EB48E0567283E8B2Fcb511DE3cD0Da231",
    "userId": "102202598"
  }
}