{
  "manageEntity": {
    "action": "Update",
    "entityId": "659783089",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4a355cec5f5092f931cd35fa25704b2f56ae5eef683d6e1483f0e166c480c264",
    "signature": "0xec6de536f387089d7c0de354ae62f3ce1f8aa706c7d33a9b7a58b1bf875b259355222e49262d7f8cc55561dc505203082c2992272299a6389772dd003329c1bd1b",
    "signer": "0xCf92e3B64A6016Bea96227078bF3bFf7d3511724",
    "userId": "659783089"
  }
}