{
  "manageEntity": {
    "action": "Update",
    "entityId": "187114148",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierauf6axkmnxbdg3upw6vm66y3is2jt3of75rehqireefohumtnjflq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":630533407},{\"type\":\"playlist\",\"playlist_id\":1395849771}]}}}",
    "nonce": "0x9ab0ac26f9f900d45c7688ca81163664e0e409f3fb24c31ec33be49d7139dd4f",
    "signature": "0x8664cd0a037527c4b9cc68754160caa02fac0611653b199747908a70fd542d407947d73f71182e8735474ddee10703a54bec72ec2c68ba6d7fec087d515179ab1b",
    "signer": "0xAeD4D1BCEb1AFdADDb3924D7BD54c4ce0a89557B",
    "userId": "187114148"
  }
}