{
  "manageEntity": {
    "action": "Update",
    "entityId": "830022953",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7dmv6a2qrb7sklp64nebfyuneamdhrmvv4zqcqiml45vizwtokeq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1089360858}]}}}",
    "nonce": "0x8a3a564582730b2659554524b802f1e9aa2b1e07dcabcddf03b841f47c28b01c",
    "signature": "0x38b6a1daf877974dbe1c753584b11337e6f0739dc2f6f15b52fe8ea4e16ad1ff0138cb0d0addfad679dbed7cf53a9bbcddc7f63d4df8603cdcbca5b315b811be1b",
    "signer": "0x7604Fc1Df216CC6E330cCbC9802aFa3E13F8EBE9",
    "userId": "830022953"
  }
}