{
  "manageEntity": {
    "action": "Update",
    "entityId": "265918903",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x703ffb3ea0f8c08cd17863cd38d9b1a0591a1263f4f58f3191f2d3dde6b88c38",
    "signature": "0x5d34df511526856e2885017823d33ed6ace556c4a4a0ebf78128d17764f38e7769fa33bb1d44dbe7177886c4c1faee8b4469b9ab77ae56410bc15bfa297bec8d1b",
    "signer": "0x3E558756cd81C80f87806F4736866607a219C009",
    "userId": "265918903"
  }
}