{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325624",
    "entityType": "User",
    "nonce": "0x42b36981f78b63d59412148a5532311f3dd265ae6be6123991a4caa83a39d265",
    "signature": "0x14449767c15004fb964b9cbaddbd2b56b461b612ee8088b572c49e5adf2af4b56ef4c07b9524adb62085b0ca7957942db6ac8c5dbbeb2921b4de9ba8679308fc1c",
    "signer": "0x52BAA98ee831ee3079B246db314335Caf4c7EDFB",
    "userId": "957487527"
  }
}