{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x7b26b433a4c38b856a7331c29f3c0be019b453da2fa4bd9627f7600383ea2934",
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    "signer": "0x7FCffbc9FB7516A6453F59c5b9918Ea8A7EB33eb",
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  }
}