{
  "manageEntity": {
    "action": "Update",
    "entityId": "594218023",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x24cb3d236af976591f91fd45f0b3b7f7b0c333f31e611440058dc36400f0bd51",
    "signature": "0x08d3f288d789da15d3963129bfa24059f5f29853579ae4871ed4604fa2c37eba260e3b08d103e90dbcfea0d388641268fbd9cd2d684ad2e9836fb1a19c5e22181b",
    "signer": "0x17a508F40418F7f62c556f0D5730f2d28d99fc8C",
    "userId": "594218023"
  }
}