{
  "manageEntity": {
    "action": "Update",
    "entityId": "587339",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierajnyrlhnk7qr5nixxkssqg2aqvg4gg4ejtyxfodzb7y7pny4fvvma\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":109558}]}}}",
    "nonce": "0x3ea244a27c37c50c750eea92405f279566a528b5230538e66bbc45a0bc1d4b6c",
    "signature": "0xcdf23a967d2668ad717100b1fbd7cedb38e95c1f7e1facc771886c24934036bb57b41124021bafb5f8658e189470f6b600df091d418fbb294bccf11fd47b40521b",
    "signer": "0x3a97e0BBe25e1D953b10c1Cdb7C543d51De1B364",
    "userId": "587339"
  }
}