{
  "manageEntity": {
    "action": "Update",
    "entityId": "356982132",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraktgeqhiem465ghoj6c27mju2af4r4p4h6jgv2fqnqrhiu5n574ba\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1028355788}]}}}",
    "nonce": "0x5ffbb356344b44dabe07ec84c135da3dfd1a75bf91e9a5be7ecc6cc5f64bd7f3",
    "signature": "0x6b9eedba1a5e6b6e425a3adfc1c7be1b765b083abdec6af659cb3e2b4e953e9717d9b53e176ea9c1315ce993a9ea177e7b93f475aefa3dc767b6338b5392b5e01b",
    "signer": "0x1cdFf70c3148938298C2f37555e69D65C18D364b",
    "userId": "356982132"
  }
}