{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "777",
    "entityType": "User",
    "nonce": "0x9838c8cf3e721fdd6efd1e43dcdd44fc8b25aac8a242207d6c3edf06a880467e",
    "signature": "0xfb12d0ef2cf9fda3a5e6d6b88d1b4d11657cacbf7d2c288922f4420aab7d02fe26d90b6c99b9415c4e6a81865c7c33203aad67bb4ea336ab65da01041bc193c41b",
    "signer": "0x24aA2928531ad81046DA8f87BC5dea6428a75286",
    "userId": "127263"
  }
}