{
  "manageEntity": {
    "action": "Save",
    "entityId": "224434422",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x35eecd87580ec27b571f81d6169e09d60125a3d13cf6ac2e572141bfc59c4487",
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    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
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  }
}