{
  "manageEntity": {
    "action": "Save",
    "entityId": "9873",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x757370b51b698dc4fecc206977f3a45dd34540e7f805a6a2b086f46c95969c0a",
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    "signer": "0x40aE1C539711FBaE3930131b028D9c764fD8EaCb",
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  }
}