{
  "manageEntity": {
    "action": "Update",
    "entityId": "725409163",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x1306b96e7ea50b83613c0d783bda91a703033edaa9777d4ad697a419edb7b8ef",
    "signature": "0x66cd4c67afb2d466bcb7048016673c40bbf4835fde25797ec76b8085c1b12e3c0c518777a375266212cbdd9470cbe559d8e3136626b55af0a0d0126da13582311b",
    "signer": "0xC6A9B7b12EbdF73207B6213c2922968BDE27159c",
    "userId": "725409163"
  }
}