{
  "manageEntity": {
    "action": "Update",
    "entityId": "383246485",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x7b2f9d0773cd4e3053612f4a0cbee3e0d113123acb6a014b5a2f08ce2ac90d39",
    "signature": "0xf271d3bd7be28db9955f9105172f36e0f821ef5d4eb5b081d1d9258cca0bed431bf6574a0c57473e1fd16f12813461d23aaebd89e3b5e9d5d9063ac8c868303f1c",
    "signer": "0x8fE23580516ef5596006BBc1541D2dCab23bCE56",
    "userId": "383246485"
  }
}