{
  "manageEntity": {
    "action": "Update",
    "entityId": "239357380",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera3stafiqe5advtn5gruzqsukphqdxpec4cjwlo654k7xjyc7piufa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1652918232}]}}}",
    "nonce": "0x38959c29130b558086e21d7fda70bfe46db1750dba2b77e25d652970abf01823",
    "signature": "0x07c5a997d968eacc2b3bfe617eb74d1103fc07e2f7cff0ae469d4ef3c46fbb6356faec6af9cb3a93a514a7242a18bcb3714787608765aad427b1331aea57c5481c",
    "signer": "0x254254711908e79e218DF43AEED76fa8cd18d77B",
    "userId": "239357380"
  }
}