{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "99494508",
    "entityType": "User",
    "nonce": "0xc5ae6f565778d02591a077882a7a23cbab79a879caa4a4939fca8f31c6dff06d",
    "signature": "0x26af4d94cd87f454db1b9a6b5f8c249dae31599ad2e9e52c7698ddb6f190ffe02f65a2c6e41614b719b9bc4c885fad1a5ff1d84a4372a10b07a618a3061a5d171c",
    "signer": "0x45C682dAb9Cd8ED5e055aC2F6a860Db5F14c27C9",
    "userId": "611525840"
  }
}