{
  "manageEntity": {
    "action": "Update",
    "entityId": "563998093",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierawmmtor4jdcfzty3hea3uvszxsppibbutrwbn5ynclucp4vtyygva\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":607510643},{\"type\":\"playlist\",\"playlist_id\":2080216210},{\"type\":\"playlist\",\"playlist_id\":1163722764},{\"type\":\"playlist\",\"playlist_id\":2046534882}]}}}",
    "nonce": "0xa18dca6b431383c08f89022a674c0ca77dc99de807fbc6a98a8aa4a4be374343",
    "signature": "0x496f935c972f7c2f6daea76765f852c80b84b5731adebe60c6659b7b696c676d7792b086a9727f1fc56780ad3e7ad0457875bf4fa4e63f3229530e5a4e68837a1b",
    "signer": "0xc11D28404f39623f2A0d9D9eC6D9E5e4C8e06fEb",
    "userId": "563998093"
  }
}