{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xcc15e5b4c6d99e0d7013f620ae6bcb92e2cd6cef12b8398265baadf892fe6889",
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    "signer": "0xca3f5Db0A8e57792e9A9FEcDAE13e82175375dE4",
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}