{
  "manageEntity": {
    "action": "Update",
    "entityId": "672251661",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraqykxb5bbcsk2fictcq3zaeg5pqtaq5ejcorcdh2ntvgww4sl2bgq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1226788298},{\"type\":\"playlist\",\"playlist_id\":1935406557}]}}}",
    "nonce": "0x6e573221c60248a2c8e5e4956262726937c95592bc2faec6dc7597b706f6f60b",
    "signature": "0x6016c6f1975204e7b8e7964ac370a883238f9d202420dfe020aa19895894188e3ca3906b068a455b8f8fa08de66e64144330fd5fa5cb5e47a109c46c453b38421b",
    "signer": "0xC5Ee9a72D83C8Dae889645372774B75CB639c662",
    "userId": "672251661"
  }
}