{
  "manageEntity": {
    "action": "Update",
    "entityId": "484468414",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9c77daf4df23aaf5a3a92272319298996b2e8929e19d94a5f5b3e4a9b961c3b9",
    "signature": "0x43382f2b2aeb91ebcb6ed58954cce7029e2e50abf7c8ce46498ed3bc7fc427493f4e3c80e4e1df1ec4cb47ffc7006bdcfa40b05aa64964e95233f312326ba8121b",
    "signer": "0x72F6eB99cf57402409D7F308bf83bC296fd5871D",
    "userId": "484468414"
  }
}