{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "707937",
    "entityType": "User",
    "nonce": "0xd3b22fdaebcc7c99c51c80ec3a6685d06b46d1c12d1673491e21bcc410718382",
    "signature": "0x8afd509fb66cfb2440b01876fc83c324280fbcd36d4c75fbfb4792d2984388402c2f8f133efa1bf1a0a59e29da1d69bfa2cfcf3e1546b863377b36d13f4edc771c",
    "signer": "0xa603e9487Ed7C3C62E8acb85f8f32acFf5d6349b",
    "userId": "278135553"
  }
}