{
  "manageEntity": {
    "action": "Update",
    "entityId": "656997360",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x299cd8f4dfabbc68846e06a6aac0979f7b4059af0e04c0dc7ffb64205b1fa713",
    "signature": "0xbff1c4e9721383ffd84c890c38438cb382372b8a10e1f38597bd435f724c80d66d20139b8e6b32d6eddf26eade2b7bf4dd7a639c1285a1c65347a24d703681c61b",
    "signer": "0xa44b585BFd979DaB4a62f7fe5E931e096A7dac76",
    "userId": "656997360"
  }
}