{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xd7ad12b2f014c4760e07150861e8184aa24e794d78e3fccbc0e79a676cb629ee",
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    "signer": "0x0196a9F6F1037D4FF7Cd31af335a3B4963e7aA4E",
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}