{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x07437f9fd323348211bf7efabb2e502d9cd6dfe2cbd0a7c6f30f083a3f142f28",
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    "signer": "0x7218A0B8E2E7027fAD6E14A85720FfE12a6db4BC",
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}