{
  "manageEntity": {
    "action": "Update",
    "entityId": "293137833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xaa4ab1f5e36186b084ea10c04ae4cbc2d97deef74de536ea028bc3be68fd35e0",
    "signature": "0xbcbcdfb5eed91897f8651db8c4d8eb53b3a8e331152dd622d10efe03797383b377d29ee1fcc7ec5ee326fe0c9cd02ed7a6f7dd02a98790f624be5905650bf0d01b",
    "signer": "0x9139bE80Cf6D934A072B63279dcE183f715CA770",
    "userId": "293137833"
  }
}