{
  "manageEntity": {
    "action": "Update",
    "entityId": "275350856",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xbc2caffcb224690e1aaa6810eab450f7d113277799acc4935b9faa03911af9d6",
    "signature": "0xce94a8b1b87bd6334b8b152c4a39fbad3e03c7afe0e7f5d4484c2009c5b578d4767ec7078622408064d31a65547c328053e3cebe5d765b0d415dc32b0521135b1c",
    "signer": "0x99cc71DF4121e0a865e7D094866224A204ae2b44",
    "userId": "275350856"
  }
}