{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xa74851f0d0d1dcb79194e40fac6cbfd618a5cb989058b886312e52e61a320c44",
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    "signer": "0xf097AB60803934ac96CdB63a0e481928927ad6fA",
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  }
}