{
  "manageEntity": {
    "action": "Update",
    "entityId": "939414036",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf2de1ffe0731ae5be2127d7844fc9a82998fe0b9b91d9518ff89e9083d9d96f5",
    "signature": "0x2daf7ae920e1653e777d4fabdf79a3f3975778a296c9d361f38bd965583b0de22bb1bda1c448c626d49d3b701e47e22d3afb4a2450712b7bcd5651199a9f5a9f1c",
    "signer": "0x8E45576Ebb27AAa919DA280585dAA25c12cFf9D9",
    "userId": "939414036"
  }
}