{
  "manageEntity": {
    "action": "Update",
    "entityId": "916251497",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7oa4ur5dgf4jerk6febvzadapqcbtsrma7xrxhxzfhpic4cvrlbq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1203846698},{\"type\":\"playlist\",\"playlist_id\":1295983653}]}}}",
    "nonce": "0xa5d830274815d86ffcafb796da0cf9f7cfea22ded87409a21954384d8015c70a",
    "signature": "0x0013f1a40acdf53096f6f2ed25eb6f38d5244ff0eefc174bba6a12606fb10f1240a4571531271721509b401d85336f456d6c3254d9de939c53850f6e0b99141c1b",
    "signer": "0x2a504b213c236DF8aBF36c36EEe6256f57547e02",
    "userId": "916251497"
  }
}