{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xec9fec025c1c7679299612cde5d3dab8a72eeca05733e6ecfaa8af7b0321bab2",
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    "signer": "0x01E9e01C2C3e06dBd38a0b4B808007bA19fa0a7E",
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}