{
  "manageEntity": {
    "action": "Update",
    "entityId": "470311808",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierahekj2jgsu62auroglmwine72qw7fvudlqno56x3m2oq2akcesouq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1013007033},{\"type\":\"playlist\",\"playlist_id\":374493986},{\"type\":\"playlist\",\"playlist_id\":1974003229},{\"type\":\"playlist\",\"playlist_id\":295494695},{\"type\":\"playlist\",\"playlist_id\":325243226},{\"type\":\"playlist\",\"playlist_id\":645235793}]}}}",
    "nonce": "0x0d3991e0c79f579220921e35599ee984d6a8db7328133f37ec15ae0d09743878",
    "signature": "0x281a2806ee34eca23283a0dc6e036f2be1eba555f7dcaaa08125303bad98a00005250ab746a839a7301d6710b2e44261e21f64c28898b17df95e450dee4d324a1c",
    "signer": "0xC05650602559bdD0b4e77CE02806E31C60EaC09B",
    "userId": "470311808"
  }
}