{
  "manageEntity": {
    "action": "Update",
    "entityId": "225323302",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x304d350bcea311bcca9cb40145b97fa8b292422c5c8e687ad20793e01b4a6e3a",
    "signature": "0x7ccd6852d9418f932fd9e28ec0a2d2305809e02e7a12e78107104ee95bdd703537a461d222d94c7e797acb1e72c4ab1f95d9aee932db2fd5aa43266a792ea9901b",
    "signer": "0x5FDa7aefD3170B463F52cd4ab0dCb4a68F1C6991",
    "userId": "225323302"
  }
}