{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "547491883",
    "entityType": "User",
    "nonce": "0xee895a5eb2a23e8e9ed0442f710134e61505d12bcc60d8241ddf1e743fe24587",
    "signature": "0xd1d93bf281d13139a850e0097e5236b62c5de4cc8c15290a8643483bbb74564813f529a113e36ef2a48eddb19c57a90719e02ecfd1a967d7fd764651e24e599b1b",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}