old_contents: 
  # -1 means the value is currently unknown
  # -2 means the value differs depending on the card
  cards_data = {
      'C': {
          'stages': 1,
          'experiences': [0, 117, 417],
          'performances': [60, 132, 200],
          'levels': [0, 10, 20],
          'max_level_reward': 10,
      },
      'R': {
          'stages': 2,
          'experiences': [0, 568, 1423, -1],
          'performances': [66, 210, 258, 299],
          'levels': [0, 20, 30, 40],
          'max_level_reward': 20,
      },
      'SR': {
          'stages': 3,
          'experiences': [0, -1, -1, -1, -1],
          'performances': [72, -1, -1, -1, -1],
          'levels': [0, 30, 40, 50, 70],
          'max_level_reward': 30,
      },
      'UR': {
          'stages': 3,
          'experiences': [0, -1, -1, -1, -1],
          'performances': [80, -1, -1, -1, -1],
          'levels': [0, 40, 60, 80, 100],
          'max_level_reward': 40,
      },
  }
  
new_contents: 
  # -1 means the value is currently unknown
  # -2 means the value differs depending on the card
  cards_data = {
      'C': {
          'stages': 1,
          'experiences': [0, 117, 417],
          'performances': [60, 132, 200],
          'levels': [0, 10, 20],
          'max_level_reward': 10,
      },
      'R': {
          'stages': 2,
          'experiences': [0, 568, 1423, -1],
          'performances': [66, 210, 258, 299],
          'levels': [0, 20, 30, 40],
          'max_level_reward': 20,
      },
      'SR': {
          'stages': 3,
          'experiences': [0, -1, -1, -1, -1],
          'performances': [72, 273, 316, 368, 400],
          'levels': [0, 30, 40, 55, 70],
          'max_level_reward': 30,
      },
      'UR': {
          'stages': 3,
          'experiences': [0, -1, -1, -1, -1],
          'performances': [80, 341, -1, -1, -1],
          'levels': [0, 40, 55, 80, 100],
          'max_level_reward': 40,
      },
  }
  
subject: Update raw values for performances SR1-2-3 and UR1 + levels for SR2 and UR1