{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xa4b84698f18e4a5ef5e448759de7b23fc02aab176c8c2e0a8d2a4822ad390016",
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    "signer": "0xf7146aa7c75f0FE0D0e8cB1d8143c3D7E63dEaB1",
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  }
}