{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x9c4484915eaef3763b5e9e79c4f70431dbbfc36cc54e7a0c5cc4a33e50030947",
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    "signer": "0x833514eC19843bc774D26d6f85621497F1319250",
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}