{
  "manageEntity": {
    "action": "Update",
    "entityId": "230937295",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraccy6edvbt6z543dzllo4o4be7wtzijchesujowhzfukfseueydya\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":2003553302},{\"type\":\"playlist\",\"playlist_id\":312386954}]}}}",
    "nonce": "0x4ef7ab23607ccc91901e3a598e72c5a3166895bc554b2905b3a21572c34ac816",
    "signature": "0x72b7f8083e7bb30530e7452f21d7ce278252dfdd123824543b67f453ec3693610696df7277faaa44fa6dfc59ce528a4fae8697f1348f0836e1445235080be5331c",
    "signer": "0x4859cb73a2827537B204400dA4826114041Ea722",
    "userId": "230937295"
  }
}