{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x283aaf3950a78acc2a4cbdc2bb875aa1eebed084c4ace74025369c067e90044c",
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    "signer": "0xe1eAe9Fa3Fef187944BA6cBa5C534e1ea257CA4E",
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}