{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x31055bca5bf625ce0bdd3949b0a187dace8af64b9d69b0ab77c2f0ed77770434",
    "signature": "0xee4e52227bd739df1fe17db87ca81c175d724cd4fb3409731951c56c1a43e3db7a246a0001f815be8b62717a89386fa66957214e39ad7ecc9b5f8f97a82ed41f1b",
    "signer": "0xb55504f08c5963cDaD3Ebc309FE504a785bAF530",
    "userId": "562920347"
  }
}