{
  "manageEntity": {
    "action": "Save",
    "entityId": "66758",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xe15e6e158ec7fa7460775e4c6bcbb7f2a9dcda714d2cad1b34ad24c85df7854e",
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    "signer": "0x7e777EBa3114d70a87d94d8073a444911a00c100",
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}