{
  "manageEntity": {
    "action": "Update",
    "entityId": "920921935",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x42c92ad35a8b3dafd6bd26302a926cdbcf0e18ac54cde2c232e799ee88b00274",
    "signature": "0x46b26659707641e2a2d5469bad57116650c851c9a45b5c5036cbb236e8b86f03008c4394aebd926c0aca48b9665b57b97349b42ac8ac1c0a8bec89eeebcb12c71c",
    "signer": "0xe7101eB0149dcE033b65145d70290bA4B9a53A87",
    "userId": "920921935"
  }
}