{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "823613833",
    "entityType": "User",
    "nonce": "0x9c33218462c09fc8ae6246b7ba8ce5649c996e4c559abfce2cbb06a024b80146",
    "signature": "0xed1dd177c7968b1577ee042a303a942f269eb007773cfdf3d29eef83fbf0bc210f9965d73fcd5d9eaa3fc06af99eb9e7633caae9c0a3df9da5a327bb23743f4f1c",
    "signer": "0xfe6022590e48C8eA51d706EbF4eAe799214A737c",
    "userId": "900610030"
  }
}