Unexpected token ' in JSON at position 0

[zer0factor]

Ran into this problem when creating a bash script.
#!/bin/sh
echo --- Getting link ---
link=123
echo --- Link aquired ---

SURI="'{"'"uri"'":"'"'"$link"'"'"}'"
echo PhasedURI "$SURI"

syno dl createTask --payload "$SURI"

[ERROR] : JSON Exception : SyntaxError: Unexpected token ' in JSON at position 0
at JSON.parse ()
at execute (/usr/local/lib/node_modules/syno/bin/syno.js:49:20)
at Command. (/usr/local/lib/node_modules/syno/bin/syno.js:292:10)
at Command.listener (/usr/local/lib/node_modules/syno/node_modules/commander/index.js:370:29)
at Command.emit (node:events:513:28)
at Command.parseArgs (/usr/local/lib/node_modules/syno/node_modules/commander/index.js:892:12)
at Command.parse (/usr/local/lib/node_modules/syno/node_modules/commander/index.js:642:21)
at Object. (/usr/local/lib/node_modules/syno/bin/syno.js:353:9)
at Module._compile (node:internal/modules/cjs/loader:1254:14)
at Module._extensions..js (node:internal/modules/cjs/loader:1308:10)