{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x38943a25a8bc4f5f117e410ea21387c2c27b1bd49a9c760e2acf62557c9a225c",
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    "signer": "0xd07BBE0b3cE1a7008F43F54797DDCD8E9a5648f2",
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}