{
  "manageEntity": {
    "action": "Update",
    "entityId": "707751709",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierab3sci5dbykwib27vdkcikg56vifpztxhsbm44ilbzvaq2g22lwta\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":49053640}]}}}",
    "nonce": "0x6ac7979f297e7ccb7ac8a05cda65cc07502b66fceed96323d2b4d42f3cbdafe5",
    "signature": "0x3854d623c19ce42ff8228fa5cbd89d1e721f44a216528e8665d6a054f3d740026c2c92c433e95ac16acaf6a93184d49807eb324c8c1396477b3fb704d0f6aa941b",
    "signer": "0xEf1011e287eCBCFD20235cc57bd6963382F19b5E",
    "userId": "707751709"
  }
}