{
  "manageEntity": {
    "action": "Update",
    "entityId": "287120236",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3af5154fdfc52f6136c2aef6999c31261df82017f44d2c0dcb12ea6570707abe",
    "signature": "0x994a83ad4881dd74c0f20ed7e3b9bb80f67a1b8083f3e807c3d7aaf6b7abde6c65b9986357e1e699acb1cc5cc0517c256cab4866275d3ab83050415a951ff2041c",
    "signer": "0xAce1B3Ec3CF890992283cF3133dEf3279644d2cB",
    "userId": "287120236"
  }
}