{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xf61f2bf4df37fca992206b9bf77d016a61881227dcce2f475df3c036eedfd232",
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    "signer": "0xe187E951AbBB4698877D5579EA8cB4edd8726B9A",
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}