{
  "manageEntity": {
    "action": "Update",
    "entityId": "936213876",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xcb70ea5eeed1cada908f9b2685705135d01889deb24ce874520e8afe5a6d49ac",
    "signature": "0xacbed94ad5bc6f839f47c31f615a477a5cc145521e0904380be3a0e7bfffce857b20021a8a5e7d24c779dc425eab6ed27ba1adc888072e4d556fc55aedb3d7b71c",
    "signer": "0xdbb5FeAE65617ed3C8616A66B1152898647cb83F",
    "userId": "936213876"
  }
}