{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xeb0b98ef25c2a8827f108f688c7498f0059f8d2bafde783c8ee396c77bcb7477",
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    "signer": "0x84aA84A6ECdC61e03f6A168709915ae4b94bea89",
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}