{
  "manageEntity": {
    "action": "Update",
    "entityId": "246996748",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera64mykltyoba2vdq6ttooikstbwb2huedtkcoczyc6aimevdxvh6a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":875696631},{\"type\":\"playlist\",\"playlist_id\":1478367643}]}}}",
    "nonce": "0x50f9fee5b720def0b2f940c4efcae593a9f7f5f787436bbe8d1b4430c015bcc4",
    "signature": "0xb25a8cf8eefbf4dcfd20e31f9fce85d319c27efbded7436a2efbf23e28dd39e93ff954436aaabd375cfb9c8d2ddfc36301183c1ae07a10905592185ce92e8d6b1b",
    "signer": "0x684a9194BeCE3b330c8b863D4C866bF0Cd7dCc6f",
    "userId": "246996748"
  }
}