{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1420489",
    "entityType": "User",
    "nonce": "0x297ae6cab30a176ec7879896fc60225baeb25b3b57ee787d3d87606601020ca7",
    "signature": "0x28e661cc100fe135ca3f20bf6bc53e5802d79d671583b86c7a66853bf9998cf3674d1985a33afcc6756c73f034f56594a189695fc93661133bb3dad667a9d2c01b",
    "signer": "0xd85E4A094e4C057572A9D525C9737051A17ab609",
    "userId": "696716320"
  }
}