{
  "manageEntity": {
    "action": "Update",
    "entityId": "135085700",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera6ariqq2aeqb4zjtmq5whhytri2rgpmodqxnxwzr43dyl5jqrhcxa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1565516143},{\"type\":\"playlist\",\"playlist_id\":949844870}]}}}",
    "nonce": "0x8ec1d88ff142ea9e7f6e7c9798e2917615f8df98c4f4cc7e8fa719b419cb0076",
    "signature": "0x84a6d033209d55c3e1aa590db158934f0d4a4d0a816562377ab6c80c73c2e38e3890241d6641d12d18f55d78553b16abfc2ef93dadad3bafd94a7ec88c9bf6dc1c",
    "signer": "0x52D9e36016EEaFD98466652F88bE3b7C97D4b408",
    "userId": "135085700"
  }
}