{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x902dd624498cab53f8ebd7ef1889607ecd40d6b05b8fe6a96b15a3327b34904e",
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    "signer": "0x325A2B469d87622C8f70162514Ca1140A9f39470",
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  }
}