{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "108320",
    "entityType": "User",
    "nonce": "0x8202a4fe7d3e34f98c0663bdb681880ee0eae67b44c6e4338796ccc974a46498",
    "signature": "0x9b9d57a341e7179208527bb53c94d33146b26b0a9af46a61c4da7e958e5b5813630dc02f8bbc1fa817709663f094835ebd874634391a8070c17a8eda1a385b671b",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}