{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x6968795c7d93c0cf86794d309d8198a53ebb4be03782a073db61144de2afb2b9",
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    "signer": "0x7BeE6A029868871221bFC265e0DAE4553A4eC744",
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  }
}