{
  "manageEntity": {
    "action": "Update",
    "entityId": "588125677",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xdcdc1f7d1815862943db4af434363247a2cec2aba5da352148c1aa421ab49556",
    "signature": "0x0457435be1974be6b553c0fb4a5b4909434537417b1f8c9bac58f83bde91a2bb435173e55c130eea54240bc02d2ce5fc72162e52b807f476126f40fa8fca628b1c",
    "signer": "0xC75a276D0a36850045510B0483E737bCDd1F5E9b",
    "userId": "588125677"
  }
}