{
  "manageEntity": {
    "action": "Update",
    "entityId": "331945079",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x49390a106ecc67f869ff04841728b617d8e4de2a113dd75a0c844e0629c59c73",
    "signature": "0x70e627e3f65adff2a345ca43046ffc2c31b39bd042d9f6c28dba79671104aae872f8d9b1c49c8db2742f2f2c5f9e04e3e57c858b57b978c672fc70a5d2d90a221b",
    "signer": "0xE01E73E267B8C1b9eb66607eC045CFcd1986360E",
    "userId": "331945079"
  }
}