{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x8b234cbed218d24fec87c9802e56999f62066105a8bded083ee18541095de434",
    "signature": "0xb37873b89ca464300c62a35f28b77d6c839a33a3d1e42c93285f2e67865c73c13c80e90e31dff3b6846f9b0b74d65dac81d71e46d533b598b9fc491915767e311c",
    "signer": "0x303fD6F7668Ad0AD901434B85eF391E249785A2C",
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  }
}