{
  "manageEntity": {
    "action": "Save",
    "entityId": "346312230",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x1b138ae9153ec47cb247319b9d1a454be7cc6f0786f264f3b39577c4f33847af",
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    "signer": "0x2BD0c2111290EB20B2843e8b1c0f25aA5cd52a6f",
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}