{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x33932ab2f53ee8fefe4392194c0cd738e04f6d1ad228e86fa81ed6a960476ef6",
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    "signer": "0xd6BB6a0e49939AA087B1cf2c9CD3210bbffDf9b0",
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}