{
  "manageEntity": {
    "action": "Update",
    "entityId": "505182311",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5ae0edf0d302be97303a36e6da9ab3feed63275c52091b22ac59ac6ff276d308",
    "signature": "0x8d4b27743847becdd598d6d3c96817ccdeeb5c4df012bc49a0db7bd9c2dcfd1b278b599eade511951968dec7bec8bee4c3b496e845e1b20bfdedb1914709ac4e1c",
    "signer": "0xA819E5C5714510Db532e726DB8526f18026feA20",
    "userId": "505182311"
  }
}