{
  "manageEntity": {
    "action": "Update",
    "entityId": "444965341",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9a8a1ec8c359eec4ae369332d72ba58102f5de8da10a2a43666757293f76ca17",
    "signature": "0x3d4be24a9dd15bacc132c0a70ed22423e7cfde07788f6c9cce8fe962e6b79eb93e0ff2f06fe50cc1eab88a362d8b4801861a4018e2932fcf0d85488a577db5e91b",
    "signer": "0xdD03ED106abBEF4982159500e32B8602B985a69B",
    "userId": "444965341"
  }
}