{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xfeb9b5d329f4f4f6205d1a1038dc83381c76f4736b26418be0c80be31b9aa81a",
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    "signer": "0xd4172DACb313eb72C6Ee29bc685450908f4A1926",
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}