{
  "manageEntity": {
    "action": "Save",
    "entityId": "580550791",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x2fc545fc84ac6d8be736f779b1b47279f725a6eaa38ee5065e45f68da00d8d87",
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    "signer": "0x34Cea527C1dc0575a5B686515aad0Bf8F3b5f97E",
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}