{
  "manageEntity": {
    "action": "Update",
    "entityId": "964025330",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x09c4bd6e3e8e231f0b244807b213109bd3eb4d06e077637777cdc63c7892ef82",
    "signature": "0xc657d1d90cb444635cf3da0e0d461fcf23cb71665801938a8241dfd8a4fd1c6b292f92533134eefaef176906a04e333c1becbe8b5f2a9c7418a730602ea1b9281c",
    "signer": "0x18e80443A33c763307bac21D4Ec54B381DFC58cA",
    "userId": "964025330"
  }
}