{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x57322cc4432c593f4d02e493b45ac9dfd5195f362af0b5f070da2eb3145e1ddc",
    "signature": "0xeddc38ef4f592fab93d03543b08ce98ac2339afc58d2cedad55a014fbbf7f6e4515dd3d120b814cce0892dbd528e544114fe534f66eb84da14bc88aa2a81a38c1b",
    "signer": "0x76800bfD466A50C833b51d3e2ef54B939416317f",
    "userId": "52582692"
  }
}