{
  "manageEntity": {
    "action": "Update",
    "entityId": "636912375",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd2600fec53fb9c35627c1cb6cd0f80ac8dd06b051bdd2b89bb6e1da7b2966dfc",
    "signature": "0x806586fb9edba3d5218ab77bdc2de2c8100a9b7890d59b639292161996972d6a149f4590d4673b71029a3f464c8baa74d000f4025200c6dc3e8b21d7b07ceb451b",
    "signer": "0x5038fc0cAFD4eb8310afc265D6fD7e9194165be4",
    "userId": "636912375"
  }
}