{
  "manageEntity": {
    "action": "Repost",
    "entityId": "621506",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x3b6d6cac3fbe1541edf12ca5a365f0d504659c76df250c8d9d69b013d8db0244",
    "signature": "0x900c66ef774dac14220f79def3691bc181e05b3f4738f7a48c05a8f1fe3868c0634594e8fae422fb9b3a5918c477749b43c51459c29a80af9480ed07f8d409981c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}