{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "859175075",
    "entityType": "User",
    "nonce": "0x987e6ba55bed7077aeeba2e2f75ccd961cdd353fe375a5096112d90d56e13696",
    "signature": "0x8381f2ab4ca352f74fa656a920da53cd9cd5c000dbde3cf3b9b113c214b26fe712b563ca8b276783bec2db8ddbea6666270aaa216340499fd28af008ca4c77e21c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}