{
  "manageEntity": {
    "action": "Update",
    "entityId": "85110313",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierapmuvsxbvaiymgui7lo7masuuzfrr4o5ryw5rtqzkrl3xl55xazgq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1723692671}]}}}",
    "nonce": "0x0755e9c9cf56a01b08c5dd24ab3e818eb6ef483566f756ebf48234c0b0a728cd",
    "signature": "0x307ad4f6947b5437110e157d4a36520de0b843b718a3eb198103979b304086a858237d1ca5331330152f81a5cb19bbbaccb5cd93ea013f6219c0fd471323665f1c",
    "signer": "0x5170604ac4bada619EBcD61Fc11Cb5B4A21a6664",
    "userId": "85110313"
  }
}