{
  "manageEntity": {
    "action": "Update",
    "entityId": "283342965",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraxe4dbmkoxwnvcprurntotghoswttzf2v5fthlmaltk6b4plwab2q\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1487288305}]}}}",
    "nonce": "0xea6ef584559326bcbd1f7a012fc7c1200da5cf3ad17800756e435b498d8eece7",
    "signature": "0x3aca85fa043266ace3d0ea52cd7c9ac61be018c3652e8f3cc9b8ced2bd9735302dcbfde030f4543f5b064ff21507c0cea6f370cf1df75aa4f842b69cff6e56771c",
    "signer": "0xa994b8dF5782f9A03370955CD9107820F30cD6Ca",
    "userId": "283342965"
  }
}