{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "409129",
    "entityType": "User",
    "nonce": "0xe27fc60b1300df77bb424f0089c4229d625ce8b028d97999288171365ab01825",
    "signature": "0xcbaf0f46982fa5e029ce29a4a7711ac97747c4fca44e53ce60678f7ee90924783d23facf122b63e0bf383ce483580bc221e56c19313f5d94604056b45dc18a931c",
    "signer": "0x4086Dda2D91F77cd46De0859a4de37F888508faA",
    "userId": "568518925"
  }
}