{
  "manageEntity": {
    "action": "Update",
    "entityId": "486317678",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc33c5832b3ecf9d79d51ab085a9b21831fdad49bc7c9fde23936c492e1bac3e9",
    "signature": "0xdea380bdb82a92b5bf0b6abdde7f31ce3c30eda93382868ab4105e586ad8bff700d27c667e56ebacb1298559a3e22963c200b1149253c120a336daee02a9904e1c",
    "signer": "0x223D5f51f92558c8Ff07CEe4Fd5478570Ea071cc",
    "userId": "486317678"
  }
}