{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x8bae4aaab1f2304e59a2be099955c4065fde36029f267d843be5899ad1316c16",
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    "signer": "0xf92227D1CE8426bD2A05c637f3E5D3582E1CEEde",
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}