{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x44d6cfe01d4d52813156659ecdeb45adc8aa2f9b547aed79ccbbc8b0d66ba667",
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    "signer": "0x3d58a8f23F962F323e5ceB7dfF76c2FeaDDCF461",
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  }
}