{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xff557f16e6e420a99b8f04f59dd941c44aeb81b393fb725eaf54aa2a90e71c28",
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    "signer": "0x08a0Ee34A6302D83cC4Afa05e3aAb44719BD0EA5",
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}