{
  "manageEntity": {
    "action": "Update",
    "entityId": "783764624",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6e1773dbf0a8f44ea6d29358e80e3aed217e012968e6c75af44c556774c7e6a8",
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    "signer": "0x6f689b25d1130eFD186fA8030CBd1Ad6f23cC51c",
    "userId": "783764624"
  }
}