{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0xb2fa550c6f3f65e021d560a37896aa2fe502b3334768d7de71b3d32fd16ba1fc",
    "signature": "0xf75d092dd33c6634645945bed84ccd9aaf5df8da5a82a7b0169022982164cfd503a85ceb784cdc803b38ba61ddc03b192b9c65437630b65c33440c7d21fd73b11b",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}