{
  "manageEntity": {
    "action": "Update",
    "entityId": "566863038",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierabfttqx3rzu2aq34xx2td34lkqztp7c4l6kun6u7svritotey76sa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1410086376},{\"type\":\"playlist\",\"playlist_id\":1330513740}]}}}",
    "nonce": "0xee7528202a7d66a02e0db687b5901e159c093be9cc00705e26946a10384b4768",
    "signature": "0x36ac088d98be80383afe4da743933cfd58724c657b8ca54223355dcca30a95c7278aa057280a4bf3d90a47cd3217288765a86928a6aa5facef169689778485671b",
    "signer": "0x8B3349bBB301b21F6d5b183D5Dd9038f37117DB7",
    "userId": "566863038"
  }
}