{
  "manageEntity": {
    "action": "Update",
    "entityId": "149429484",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierag247nm7xo4g7r3c6qiwflqawcxdbqa3t7rqrb27kxwgzntzwg6fa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1806360354}]}}}",
    "nonce": "0xf1f93f3c14992ae1a96cf4684bac3099058e26377837010059461bc822386587",
    "signature": "0x6f7f5a95cf15a0597ba84d50f05493050e70a2a54fa177bf438d82e268cbad0f66a62208bfca71c4bbf6e367e44c507f05b31f67a9d0492669eb02b83832ca7e1b",
    "signer": "0x9cC78fE5F75781C73C1C6D67045d681C8a4C6c9a",
    "userId": "149429484"
  }
}