{
  "manageEntity": {
    "action": "Update",
    "entityId": "429134824",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4d445145335c24121413e1225b50fc0a07b9eb2fc79f5a15088a004e2f03a058",
    "signature": "0xfcd55f19a8d53cd647b11ae136ff3f0351cadad6e78349b6966c558108b7fc3c5afe6a6047331733c80a7507aa5db66258d5f88dc183e15afefc0af9f275045b1b",
    "signer": "0x0b919070bf4822A85C3b514201b2750E94a640a6",
    "userId": "429134824"
  }
}