{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "278883",
    "entityType": "User",
    "nonce": "0x1f3e9c07ddc2694e010b478e7c9ac63c18e9acb44dd240b71ec52518aecaecc2",
    "signature": "0x388d32de35651b2c5326c9e7a3090a4637035131962d59544830227e597c873351aa2ea7669c13ec74f1b4c02130105e51551e396e936b74bd159708e4333d881b",
    "signer": "0x25Dfb5B0D7CDE92b65C3EEB690F0d4afdd575ae8",
    "userId": "253005"
  }
}