{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x8b366de35cf6ad2fe4677c4c7a4128845c7645e8ad6e770d372508761b00cbe3",
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    "signer": "0xa0e7bc51dB8029B4a47DCb7bC620654B2dA7982E",
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  }
}