{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x0681749985b43547c384eb817080708fad72b5052080595dfb6b6bad5c2f497e",
    "signature": "0x6aad7d46d83251141a6a2ebe0c2329b9844629922c195fa48969a0e6218cd7d71c8451eeba87d4856e057cdfc5d48a81fc3c604f497ed609e8976380d3fbd8421c",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}