       7   6   5   4   3   2   1   0   7   6   5   4   3   2   1   0   7   6   5   4   3   2   1   0   7   6   5   4   3   2   1   0
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0000 | Message count                 | Message 0                                                                                  ...
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0050  ...                                                            | Message 1                                                  ...
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00a0                                                                                                 | Message 2                  ...
     +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+
      ...                                                                                                                         ...
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04c0 | Message 15                                                                                                                 ...
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0510  ...                            |
     +---+---+---+---+---+---+---+---+
