{
  "manageEntity": {
    "action": "Update",
    "entityId": "403667803",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera26axlg3amdsxmcylbv7mk4srygkn74fkhzc3soegnjdzigzfxnaq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":553185963}]}}}",
    "nonce": "0xe8c61a5a7ca582a12b3755970f49d8a25830dbbdeb76ea6b0eb405177d142ab1",
    "signature": "0x24de9fae435dcc761cba7c762d25615be3d1be9944f3c751feff8f4776a03860092e48e819e7c29f1aa43eb5799c8339d6116c6568a28cd040f225fbad3e2c3b1b",
    "signer": "0x6CDB14bB0E06b4Dc606A00A022c8bF4229E1699E",
    "userId": "403667803"
  }
}