{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x21c3ba3a8bfe27900fa30057edd174c11fd5d57e8415c71e65b8cf3eaee8b956",
    "signature": "0xae42e96f8c6e68efe76922c59ef16d52db3daabbeb0ed4b7f390e1e7af3451dc5ecf564bad97a8602f3a41511a33c8bc726758d8fbb9f6cbd492dfc5c0faa13c1b",
    "signer": "0x989faEfE658E0b6dF1793197b0De4137Cb1aDD3b",
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  }
}