{
  "manageEntity": {
    "action": "Update",
    "entityId": "594428433",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc585fa8a55a7040b5ade2df93fdbb19aa1c844fa8c798ac00762b0cbcd48a8c9",
    "signature": "0x1fa293b3f853347db1dae7e98f0d4de554a57e09119cad0ab738d07ae35fea0b45e61937ded6187d00dd7d2fafa02a69b8771766f2c6b6c5fffff1e636f4a7da1b",
    "signer": "0x942d1A5E2D9d802F10747030C60f6725A0121310",
    "userId": "594428433"
  }
}