{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xee312954ce576e453b3d33ab35c1c960dfbdad297d80d66bc478637700eafb8c",
    "signature": "0x1258b055b8ea534673628664895990c4e762f42d37dab8233e296f383f32d1da39cbd9aaad917860a47ecd7e152c030d130c13ed4e0a40c3a5fa24e0d339a2711b",
    "signer": "0x815d4f39392BbC44Ce940C853AC93C3ec1422a55",
    "userId": "626136450"
  }
}