{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x89844709810dd0ae1335ee3636d2d8cbc62fef2bb95b2c091a84879fa178a9b0",
    "signature": "0x69b911fd507df1ee7d2907631cb3ea09e7f24cdc05a0f352ecfd79e1212c6631201d6c52911d2dcc65a4c14d97d9361392c8e3287233415839c153e5ccc7cbdb1c",
    "signer": "0x758412042706423A51F134197318Ae914d67193A",
    "userId": "48520426"
  }
}