{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "895209133",
    "entityType": "User",
    "nonce": "0x918b925a04f14562f7250203f8c825a0e214af95c813d5c11ff2c8c9d910fdd6",
    "signature": "0xf385be514cb0270ca248dbe1e5e72868b3ca0c8d7364bcae9cbd6695edfc3a0436a110827aced9c39391cc329c41b25acb8a2efca793ad40a46d94d31dd207b31c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}