{
  "manageEntity": {
    "action": "Update",
    "entityId": "915972604",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x2fcc6220d62b186d5d4bdc3bedb07f5ed0fa524bdc2ce9144714c3e2bbf9788e",
    "signature": "0x99d896e687fc8260c4ecb565375ccf0f5ef005b32eabce8bb4e7aecbc4193ae6400814e8c35363af488a5a61d0082ffea225f876a8c47673c55141ada4e7665e1c",
    "signer": "0x65fE0Ba212131b9f06d4B7f9edE5c43BC4527fC6",
    "userId": "915972604"
  }
}