{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x37f36394d14e2c4d282984a2e212a5c0ca36799779030ec9dc924f3b75b59a40",
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    "signer": "0x3d6C654681Df058a8a557c47344f669987046Bf1",
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  }
}