{
  "manageEntity": {
    "action": "Update",
    "entityId": "368319828",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb689e4ba55bfaf7566381c7f22d9285b34667471839e56b7ceb4749baeb2bc30",
    "signature": "0xaa6a51c2ee3042943c235c01d66e8486ad6e6f8038811947949daa928047f760518bc5f436fa831f5edf97eaaa4b14dd11dfea945da1d3fdcd4d47361dd8bfbe1b",
    "signer": "0xa900b068954c988c4e1FA3E4D25af93c8aD57346",
    "userId": "368319828"
  }
}