{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xd08783b58e55c3f7561e73b1463ca38212bf38e3bb4dd95466a5a9fe5da61aa5",
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    "signer": "0xDbF38B495fC1745Ba800b357B1a80836051aE605",
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  }
}