{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "56774",
    "entityType": "User",
    "nonce": "0x978bba09d28ad216b6b844b2c0f05bc59e205d667417fa931dda06b03c5d950c",
    "signature": "0x2018278b090df77833ef3de21e64f2f37ed022863e55f5c15a4523dba8264eb55399e0f335c0f10bcdb835e99aa288e672311c0a18809b3c6e90d543873c383a1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}