{
  "manageEntity": {
    "action": "Update",
    "entityId": "189194486",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd33326765da9ed33983128408a2b7cbc71596b76326db5bc155ee397d63abea8",
    "signature": "0x8d732eb992c55285dedee49ba82d05da23021369aeb6b186979e60a88156535e0ce967fd474748f3a8fafbae5acee861aaafc0862163714f5d1ddd51b29b4cb81c",
    "signer": "0x7EEebab641A35707b8dE5A7d40a4E283F2ea25D7",
    "userId": "189194486"
  }
}