{
  "manageEntity": {
    "action": "Update",
    "entityId": "850627398",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x30d04010fbb0e61b81382104087a4175e10111705076d15917ad0772f4faedec",
    "signature": "0xc0afe27da49daa361a96db6adf146fabfe1afd2a941b0cb908175a67e5b41c422269e5383c6d5fa1f144b1af58963e265ac4904a200298071d5e1a7bd9d687911b",
    "signer": "0xaAB075f1D622286f16eAf63179aa4157DafB1cDf",
    "userId": "850627398"
  }
}