{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x33ea57118dbcaa45b8647017df43f2956f8b2a517bfea9b62d69c529ebec35da",
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    "signer": "0x548E1c3e772F1853e347739D56c373D3E0E4A50d",
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  }
}