{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x250f288ae2cf1e5843c6a8d2c9b24c3aac1671e788aa515b66aaf5ef5208bfe9",
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    "signer": "0xFa074f848Ca977aCBc270CBbfd4c375c210eB1cA",
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  }
}