{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "163287",
    "entityType": "User",
    "nonce": "0x546939371db06ee9ef688f3ca3db55505251b2921865bb6806abcc1e2fbfac24",
    "signature": "0x7bd789b607305114806e294d2d517b28bccb222c1247e11af08f7043c0900faa43ff50d9305341a5757434a80be8d04957fca3ce6c14215edf6220279518d2e71c",
    "signer": "0xa0C10F709D3c5b2b5FecDEA05B821Ac58bF0c782",
    "userId": "641492277"
  }
}