{
  "manageEntity": {
    "action": "Update",
    "entityId": "887781517",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierao4o3q4ttpepmxefkz6rkhshryl5b464qv5os4lo3rwgxucwdgbsq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":302807856}]}}}",
    "nonce": "0x3a1728a4a7201b401d7adab6d8dd560d364dd77208ea0683e6c2c8876f1dbd6b",
    "signature": "0x49a10a1c6313570ccd7b95b8ce17e7d3ec8ea28408b78f1e4194aa88181ed92954676869868dec6f673717e5e137cd33d56339a20a3b0ee240ed0c0a01eb408f1b",
    "signer": "0x2480668A2849AD9Eeef1129d84348cd7073D4Ec7",
    "userId": "887781517"
  }
}