{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x68807da562cead35a205d5836ee55efb7c0c7ac29dea09a4c04b203f0d01fb77",
    "signature": "0x7526f2c57f19fde80d1a1de527e17c3a9a92ff5e71eab01cf5012ac7d7126fd420a98e82788101ecace811e48b3322a930736a05742020433d5cf27a9e957c651c",
    "signer": "0xCE1807CbF44d0BF3961D9A4B757dA508604b77E6",
    "userId": "157032641"
  }
}