{
  "manageEntity": {
    "action": "Update",
    "entityId": "690093689",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x823b5228d336a9b98b86d020d511a9a58b39e00f46c26c8146f66d8c30da71a8",
    "signature": "0x3861d471e8c119711180fc84d499eaaa5332403f67f90576c1f0116a0448fce032340122bce849a0bc364ae447d8be19e51e15b5169e74411540bebf38d08d041c",
    "signer": "0xbb3b8C270080b0DAE42411345FCDc6a00369e247",
    "userId": "690093689"
  }
}