{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "29907",
    "entityType": "User",
    "nonce": "0x6f1bcd8636caac666a933f1452c6021c50bbc8dd09b8e35f63493e9589525fcb",
    "signature": "0xcec6a71d22b26303c03af87be68535f50c888d0b568c8a5196a2a1b3462060053c85c2dc653b52dcfb9b38dbda8c90c68fe0a89edb2918c456792c6ec76177101c",
    "signer": "0xF7628Ea36C0C266E289b7538b033fB949A6C31ff",
    "userId": "386745392"
  }
}