{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "629511",
    "entityType": "User",
    "nonce": "0xe2952ec6f4ed7ce78cd6f0c5bef62517b255f1737d62480706ea94f97bcc49ba",
    "signature": "0xbd146f6dbe56f4a718ebc46988bf92751ed258b15b900156facaca2be7e1785972fdd9df51d9719fcae12f524d5b23c5c8cebe49e103873edba5a7c2728d5cc81b",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}