{
  "manageEntity": {
    "action": "Update",
    "entityId": "656359487",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierabuqfkhsvf5x3ztuyucq26bsv2v5lq6w5k7otwabeczwpimirygya\",\"data\":{\"name\":\"track3\",\"handle\":\"track3\",\"location\":\"Incheon\",\"events\":{},\"is_deactivated\":false,\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4a5052188f17f006120b98d01b530692044920453ef23e2a4dff232fc3cfeb6f",
    "signature": "0x66805df33904482a6622c7105315867961734ce594530e87ff54424dd64c0a43348410f664e09d69556c206c6232b5b7aaaea823dc9f47b289ad80ac7e2b710a1b",
    "signer": "0x1aec96de9cb4F2b3f49297164e87635590B1BbdB",
    "userId": "656359487"
  }
}