{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "678556080",
    "entityType": "User",
    "nonce": "0x13684c37dd9b5202a74da48554d6c0de020fe7ed9556c7d8905bb456b41313a1",
    "signature": "0xaedcb16c953c35f3116420ba33f53d1e89ed8a004b4abede1d93c8c67fd903477db611420009fbf92766603f144246b6b160696b824ea7309f1d9a72163655431b",
    "signer": "0x22f1114E94068535915bEE815907A708e77a3Fc1",
    "userId": "158645"
  }
}