UPDATED: escape user defined `\` and `$` as first key character during JSON serialization to preserve special `$` during deserialization
UPDATED: escape user defined `\` and `$` as first key character during JSON serialization to preserve special `$` during deserialization

twoporeguys/librpc,twoporeguys/librpc,twoporeguys/librpc,twoporeguys/librpc,twoporeguys/librpc,twoporeguys/librpc,twoporeguys/librpc,twoporeguys/librpc