{
  "manageEntity": {
    "action": "Update",
    "entityId": "259513372",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraq3t5areetgqqc6ewkzqytbzpwm67zs72szd2wz6cpodlxtrio7ta\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":29595980},{\"type\":\"playlist\",\"playlist_id\":246953637},{\"type\":\"playlist\",\"playlist_id\":1548003131},{\"type\":\"playlist\",\"playlist_id\":304326182}]}}}",
    "nonce": "0x60b924fbd38828506a4e689aa2cedeaa48b4bf5aaf07de6b81fb73f3aaf7b922",
    "signature": "0xb5079c73afc9c33661d97e38d39ed45b37322539e5291eadfc6db39e961d1d6116a33a8b7c5e8d3df94c883f95afdca542268937986d97b82b3f03ae765a2eb41c",
    "signer": "0x7deF33625A39F0c82e548F69aa14Db905C001F9B",
    "userId": "259513372"
  }
}