{
  "manageEntity": {
    "action": "Update",
    "entityId": "404080337",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x0f40b506601464f14c785804079271e39ed05d408128ff4f1a79c02dbbc872e3",
    "signature": "0x1e066de008936cf1befaa8d70a2bb6f8a5db4ccea649ef4ad7e07db132fa7bc52dbf7d88f97930cf9cfed5be47d1cb32a7c3e15bf8a0d3804155cfdb4179345c1b",
    "signer": "0x4ABD89991f78a0c9155AbBA7F8EA2e86442Bf33F",
    "userId": "404080337"
  }
}