{
  "manageEntity": {
    "action": "Save",
    "entityId": "1848588849",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x3fc75c60f53ef724a0452f1b025c262584de63fe2152d2a4ad6d0708a0ff38aa",
    "signature": "0xe5f15f25bf19f7aabe99a73611b141f72f39f2cfea343e1096ca56a9c7e8ae27385f24e37b83b16700a0f05af2b12c907c1f28be18cfebaa2cc5319c934702f31c",
    "signer": "0x3D472a01Cb831ac594835ac6038A4346E2A22B94",
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  }
}