{
  "manageEntity": {
    "action": "Update",
    "entityId": "65913693",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x03e7fde2dbf61a9222454d6dec540f3a1441308525242053046569aa4a376ed8",
    "signature": "0xaebf9870ce405ac674f1ddbd8d819977ca8d613b1ef79b5e04e27150466f09912021d0a6e2feb9230425fa784c9621277d8c7691d32796223a852fc2744705701b",
    "signer": "0x943e3034Fc47B278c77A0D8bF6d68320A1b0481e",
    "userId": "65913693"
  }
}