{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x2d88296f4c7785a0e0cbf347e99af26de78dccb624e2da2f2c9c1e07307048c6",
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    "signer": "0x7fff5ecC5372FE9351794c5A41461025a1fE95b7",
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  }
}