{
  "manageEntity": {
    "action": "Update",
    "entityId": "843706290",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe8d6771b83e16567b2ba2ad8429187b244a597bd6f187117bf0a834fde907d7f",
    "signature": "0x3951d9726bf080870aad10e84af5a0e2745b280914b8ab2a6057af1893231c01506767935f7e654620879b9d4caba5b9f369ad6501b8a9fda5b3c81f823e79d61b",
    "signer": "0xFDE85dE49F586bD46f93bBad653520D878cCdD47",
    "userId": "843706290"
  }
}