Setting command block with preset commands in Minecraft PE? [duplicate]

Setting command block with preset commands in Minecraft PE? [duplicate] - Unrecognizable woman holding paw of dog

I have seen posts of people that are trying to put command blocks in their world with preset commands in the blocks, and they claim to have them work, but I am having trouble doing the same thing in the Pocket Edition of Minecraft. Usually it says that the “{“ character is unknown, creating a syntax error.

minecraft-commands minecraft-bedrock-edition

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