{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "211416595",
    "entityType": "User",
    "nonce": "0x5199024e64a76c1ae3318879cffeda8afe83276469473911361ea5968bbabbbf",
    "signature": "0x20f73be1157716fb86d97ec7267a75c26e13a618d94c3da4610027daad586822057f047ceeb71b51ddcdf4427c5cd780672ccc33a984c2467f93be3b793465551c",
    "signer": "0xAd33018d1AA234072Eed7f991F9891f3688158d3",
    "userId": "413212044"
  }
}