{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "937299109",
    "entityType": "User",
    "nonce": "0x8038d6d7eac1ff998b4c2ba4676f3ab81c8a886c14c6f92b570bc5b14dcd4c65",
    "signature": "0xc93f636753f0c2e8de867adf231a14d7d09dd97fba681fca130b5a7f5ff89f4a5c8fdafc105d7a89e02a23a181db26a9f41ca4fa85d5e848a384620179cb89f01c",
    "signer": "0xd9bA17330fFb3Ea1356C5eC14971D9e1f2cb5200",
    "userId": "337125448"
  }
}