{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "485987672",
    "entityType": "User",
    "nonce": "0x934afe2842fca4519f33e5fd4c9db4722e946da47c9193fa4457a16dec4e08c8",
    "signature": "0x9f0aa8f172a6156e0958165dcd702b3b9c67a6846bd62be6a7a643af1122af0a003bae1a96d0e80a2310e2d2117c458d4b675f0ae020de85f77d97b1071d4f901b",
    "signer": "0x21370B7a703524cC2941323C2c960224021F8D56",
    "userId": "986168993"
  }
}