{
  "manageEntity": {
    "action": "Update",
    "entityId": "293137833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x57da1c903b4ea3e80caae927b385b4f252225fda5ea8a5d8bc253482b3427496",
    "signature": "0xea6c770a7145df4c245da3991acbcc0cc5c4d1e120367db34b7173d990556c054af7eda2b7743ff34d69bad3b21626cd3b090a6e736e4273a80aa1c4494990e51b",
    "signer": "0x9139bE80Cf6D934A072B63279dcE183f715CA770",
    "userId": "293137833"
  }
}