{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x3e137d0c82eb198969e83961a5aa9b3cb838471b9e7078da1d64ee95c9988a2d",
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    "signer": "0x505ca7Fc2bBAdC58AE763fe05c3c0316d8aE4756",
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  }
}