{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x275a18c7afa70d40eb0ff7dc303d3f5029b8361acfe0cd77af94f36293b091c3",
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    "signer": "0x98Ef036f2b048b8c548A6296E5Bb14C92eEF6843",
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}