{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xf0443fcb85ec63a700133cdeaca0d8a18aae26a90856cc1c6b585a03cf1113a0",
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    "signer": "0xec083a3c9f7e847f8676C7CAF29E433702FB2CA5",
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  }
}