{
  "manageEntity": {
    "action": "Update",
    "entityId": "814929010",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierazqb7apmc7azt7w47ygg22iellrzij47mjgvkv3wjvqmt3sj7dcaa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1157820743},{\"type\":\"playlist\",\"playlist_id\":1306709195}]}}}",
    "nonce": "0xda4cd19c49d53ab1b3085c7430a6a180c9b8b02a42d16a0c6e294c4df5cd9487",
    "signature": "0xb1d7d4c32fd1cc1e40f77536da8a18fdf5855faa60641911d9231d8e3f999e4128cfa5827d6e9fcfccd4e508574de3fca7e0775f8adcd3139e9c7f6e6aebbf811c",
    "signer": "0xEf3d3c6df875c67aa35e9F473e01a47D659c95f9",
    "userId": "814929010"
  }
}