{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "847673429",
    "entityType": "User",
    "nonce": "0x34333b1a63d59c47d0caddc2b437b404fd6690e9afa298489f0af32012bacf06",
    "signature": "0x07705106743944a63042fa7711cc549f8b071bc43ed2354c4a64ce53155ee8b23630643e918569f657a9840a27e35a2863711e8259ab7f56b920e22c9abb67b31b",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}