{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3581ef29cbbcbe423078edc9cf8202c6c6d79a75b91dd95ccebe2b413e9a6a3e",
    "signature": "0xf0246fdc60872d7083fbc6349d2cc5cf51a80efa08babbc5ac1bb70dc90ad30168456259cd4f56ae3568d6494d879d668a7fa204130efebcde5d43609573c3eb1b",
    "signer": "0xCA34537176e273Efc43776B70B5c70CdD5baE067",
    "userId": "403911835"
  }
}