{
  "manageEntity": {
    "action": "Update",
    "entityId": "384598925",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieramprjmalmzdoz6ha4xdlum6ommxywwix3wsinjwzaxezn7zwkxe4a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":535600526}]}}}",
    "nonce": "0x666a6079b53de07a6b1624268dd097b8d9333b7373c8368a25e22e2585225797",
    "signature": "0xd7e53285b1b62e6534170363f4309535a70686bb1b0bc10209812b303f172ae151781ae5722a133b4e1c284b4b9249bd8ad2586821ff9ad4a8cec7fa6241d9391b",
    "signer": "0x4bfDeD4FDEdF07F09C7F1BB7263F02732AA9Ada5",
    "userId": "384598925"
  }
}