{
  "manageEntity": {
    "action": "Update",
    "entityId": "128268023",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierag7omqgu7eyydx53bo4m7txjokfy4q7cpowfdxndkwyzqvpa2vejq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1256999591},{\"type\":\"playlist\",\"playlist_id\":1682361584}]}}}",
    "nonce": "0xe4d18cb736de0ce26fdaa08107f47850f40cbe0bcd27d1ac83ad0490f4f58767",
    "signature": "0x336f33b634cbc14b5246609cee02db61df8634fd609122608a6daa10406dbd7d1a2b6428b6f1ea478ffcc90ac0b7a27acf3c48e6cb6baa08f83b3ef83b31f8c21c",
    "signer": "0x241Ac8b21C13b780998efC7278Dec0d0d44D20B2",
    "userId": "128268023"
  }
}