{
  "manageEntity": {
    "action": "Update",
    "entityId": "818723170",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf6678f501b5ce2101052ad16b33f8852c97cc0e690c280351f553181904f9b08",
    "signature": "0x83be0eecb53ea6b490ec75a7f24334b855aaa648b0867367d152fa685da0ebd40cedc5ddb2897d8713eab721ac52ade4de006ba4cbe71215d4b7b901c2ac50671c",
    "signer": "0xaa8Ab6aeD27BF1caFe5177dB3A5f057376f82dFD",
    "userId": "818723170"
  }
}