{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x5f6e2f01430f52a91be475d2d327491dc4fb2236535d370c4039ed33bfca8996",
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    "signer": "0xdd4c40aB68ED9F5f1C1a2f862439698f80ed27CE",
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}