{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xcabf5db61e2a195f48b7d45723973449812ac02c4739c000db5995012ad0d86e",
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    "signer": "0x62858Eef13b4A2ef7cAD9Eb37D1a547102a55A2B",
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}