{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x292a6603f4d3c6500c0d0872dd187c52b699cdf8140b1bca96fc4585b38cd8ec",
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    "signer": "0xADAA76f366782441266581F6B016A9e2b8E11C11",
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}