{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x72358792579868a0fc86bbb3a12370c13162c714a5ebcc76f8ec587b32df90bf",
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    "signer": "0x1C28AE4eE53769E5D6dfd174CF8C6aB6734CAeb6",
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}