{
  "manageEntity": {
    "action": "Update",
    "entityId": "692340677",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierayasr5ar6dfyuz322hp43thg6l6rq4xtykyakjscclfjhahmrowcq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1969081967}]}}}",
    "nonce": "0x067323916c0a4fccba5df8a6de733a73d639ef74bbffe44740005cecba8d1ffa",
    "signature": "0x8fb6517734c22f11a55420b93cbb299ffa26122fbe0f7bc3061758c19b0de87f6ef0e66f41e770e714829ec53d6cd7b6a4a094ac76354480187f1b005eeda3fb1c",
    "signer": "0x4D72d63bB6108D138AfaB7171b6099BC6c3d5831",
    "userId": "692340677"
  }
}