{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x2ae5db813a047f57618c3611b4a11e11941bc18ebb73f09876398a77c10fbb2d",
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    "signer": "0x49Bf16AF8b770698D8C605Ae4571C40188480374",
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}