{
  "manageEntity": {
    "action": "Update",
    "entityId": "224077964",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x15fd528a791343be54bd1c4d8593a64d226081452a9f705919cf989a5321ad27",
    "signature": "0x5688e5ceafb82b546fd6c0a07e040efd8db91fb022b50eca4849411b0eee8b0314bb0c04b95da5f076eed51292546b9666c53a471069eea7d0b7740a25badb051c",
    "signer": "0x5F930F595D05a154b708e397C6dDb5ddC492A2Db",
    "userId": "224077964"
  }
}