{
  "manageEntity": {
    "action": "Update",
    "entityId": "345956739",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierakrcpd62yotrfoo43lol7dzj6hguhnkqyfyxpoe2mo4otzg4zgcwq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":133183940}]}}}",
    "nonce": "0xd0990ef8a89d996b4bf019b5bd1880d684f0bda546be995ab093a30bdb24cca7",
    "signature": "0xc752023c6e45ac6014ec9b4726d82af0ff295ab79aaef40f1e7a6195c8aead1957d7fe74cc18190c240bf64d45e40797f631d5909573d30057612d67e2c8d60b1c",
    "signer": "0x505a2ad9ae3b08F092b3D551b59daEDaba80a7aF",
    "userId": "345956739"
  }
}