{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "400171089",
    "entityType": "User",
    "nonce": "0xead2ca72988a05ffcdbaedb9f2d313852bf1c9083fab49a95b9bf7559a7072af",
    "signature": "0x2e4b11861dfb04aaa75b9b71f8e5296b2ddf926863ed955da15dec0cee0a8a352d20d448794151662a15a3b9e6991cc719058802f52ed97dbd350db16276b6ee1c",
    "signer": "0xC0f8D2C092ae50e1512d827eBeb817e1ea4112E0",
    "userId": "451729998"
  }
}