{
  "manageEntity": {
    "action": "Update",
    "entityId": "889476491",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6ebf4d418a4e99fc13c812c9e092fe9289a76e0e90cbf4e6397231c747c99d12",
    "signature": "0x2b516dbfa8c57e1ff8259fdba87ba8fcc1aa9ee01e5793440abb9cc6aa50e0d65576d55357778df10dade6e328cb28df6e3f0474ef8b331680185c36bf5390771c",
    "signer": "0xC6e4e25195d6b990E37f118FDAb0C8D1d5248688",
    "userId": "889476491"
  }
}