{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "146791",
    "entityType": "User",
    "nonce": "0xd6576b574eac6dd2bfed454f59b1a70c35f2addbb74baccb455a6af515341575",
    "signature": "0x6f87ee8b26f461e4cb9b340ea5e0cfdd9d1d51bbe850adb01e1fb931a8a4d89909340e69eeea842a568a24e4e6b66f78f8ab8a3f7e9a23009b5cc299aeb491141b",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}