{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "237640",
    "entityType": "User",
    "nonce": "0xb7ec90a9dd3b9dc170d39d6e627530651451e3dccec9644e8deb67e3a2bbc983",
    "signature": "0x829b80cad0c48c5df17ec48362b15303ce48eaa00f61da007d00d75879ceb749680d8accc150f10a04f0be23d126ac95bdd06d7efbd4b37f7e299f429e77bcc71c",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}