{
  "manageEntity": {
    "action": "Update",
    "entityId": "570474497",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xfc18d1fc41d2c0953e38e4c370f5c2721c489507da0d0ec5eec723ab8c155d8a",
    "signature": "0xdbe905dfab57ed52a0445709e0aff5bb31af719a057035101b06325d99a2302347aea55893b2abf4008f842cf561a54c9322b4b129abf244c93b2f4271233e371b",
    "signer": "0x7C5d61D14c1653440D33A4BDC81c9B2CD9C4e64D",
    "userId": "570474497"
  }
}