{
  "manageEntity": {
    "action": "Update",
    "entityId": "665434834",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3476590f689fc96b9ce0e27bdeace75f2f203e3caf7cb4425e861a34b3b214c3",
    "signature": "0xbfbc2f33937e3929c34f60af9436ea5ee9a98ebf502d729b11ab5c10673e0f301999f62b6dfd9e4880727d6be59386ea5f00a5c907cb2402ee6cfa7b175b20541b",
    "signer": "0x34aA674491417d9aCC0Fc622796810A2e3908f8D",
    "userId": "665434834"
  }
}