{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x30da1a8ac61f56aea61526d98447cba5d7c4a2a174ecc95a1626a4ef422adc85",
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    "signer": "0xe45f89E2286b04cb9A2Fe2260cFc99cA98Eb80F8",
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  }
}