{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x22ba776f2310871cd29f6ec141f9d43af6bf6a0e52ed5de28fa75bbf45c48dc5",
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    "signer": "0x40B1E2e8DD54db8aAFaacf81A7ae13394E412374",
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}