{
  "manageEntity": {
    "action": "Update",
    "entityId": "849776474",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierapw5qrazix2c7y5z5so5rcj3kqe6pqdnuytpnomaikuwmwrzc7e6q\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":11748632},{\"type\":\"playlist\",\"playlist_id\":1207197683},{\"type\":\"playlist\",\"playlist_id\":2070428543}]}}}",
    "nonce": "0x0b432317507b64d95b0bcfe57932a22bc057098ab80eafcc7460bf3664e80774",
    "signature": "0xcf27529cb8edbefe40abcd7b42555250558dd483926cffa86ffeed22205a08c23d3d7c644a367342b97ca0b580ec8f48ad2b9062b316b8cc2488c3b8854fb0091b",
    "signer": "0x97eAfE883FbF33a8b75f6f37440caFE5CC452d3f",
    "userId": "849776474"
  }
}