{
  "manageEntity": {
    "action": "Save",
    "entityId": "6691",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xde021c5643866a83b8c5ad5b8cfe7be003f27e5699152177ba3d1023c6314343",
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    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
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}