{
  "manageEntity": {
    "action": "Update",
    "entityId": "445263420",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x95795b5e8dc99aef437a2038f7b97eef9a6c2b00393f242e2ddd8301761e37a5",
    "signature": "0x63e6c7b0a1a53a04fdf59f5fa8a67511c961b087fda84371de5a92684421d84552bc335caf1b35b605b2b6f32f05aa909a1953153ab439520a8a93e89da5e9cb1c",
    "signer": "0xd422761AF724fA5b5ADc74344849703223FD5D2D",
    "userId": "445263420"
  }
}