{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "620307004",
    "entityType": "User",
    "nonce": "0x1ee51a7c334058d263bbc5cbfae2db9a07e26832228355f156ce55ac92f4bda8",
    "signature": "0x8fb955ea7d507f267c1630f21377f2f83cf3cff2710ecfde4478e65d1c724dea32b3d895beeab8b093124d5007e935799f39a75389323fd27c2bf00933c509b91c",
    "signer": "0xAB601814a3b7DB1149bE0b45154295028AB51f97",
    "userId": "613793033"
  }
}