{
  "manageEntity": {
    "action": "Update",
    "entityId": "275350856",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x533a177cc978ae8c4112b040ebd06eeac00b5dad2d4dbfc7caf345b2f59a03d7",
    "signature": "0xa6c6068ca85eb28592bd296c5fd638c38aa909731fb9d084a3a19501e0dd21fa180e70ee768a671056777fcd8a9e7107fd2a5d1a1f943c72bfc210968ff35d091b",
    "signer": "0x99cc71DF4121e0a865e7D094866224A204ae2b44",
    "userId": "275350856"
  }
}