The JSON-RPC protocol version.
2.0 "2.0"
A unique identifier for the request.
"1"
The name of the RPC method to invoke.
getProgramAccounts "getProgramAccounts"
Parameters for the method.
The Solana program public key (address) to query accounts for, as a base-58 encoded string.
"4Nd1mBQtrMJVYVfKf2PJy9NZUZdTAsp7D4xWLs4gDB4T"