{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x08046e67b1139fe73102d1cd85b84d06024e5336f3dee58e2c1ed3dab5b7b09c",
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    "signer": "0xd7371f080FBF0B1790ff9ae6cFB96bAf0bBB20F5",
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  }
}