{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x6e3bd333ec55359ed9ab84beddea47fefa0cee434410264f02917c6ef0a612fc",
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    "signer": "0x2fff57D5628D87Ce98d02775C9cF63dB765aa6c5",
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  }
}