{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x87a079175aae79bfd3f2e59b914ec01147c65612974708c385f559679c0e31e4",
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    "signer": "0x31eba27Ca105bABB3B8590b9A71b07C6d1e7c747",
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}