Update EIPS/eip-7702.md

EIPS/eip-7702.md

@@ -50,7 +50,7 @@ Transaction is considered invalid if authorization list items can't be decoded a
 * `nonce`: unsigned 64-bit integer.
 * `address`: 20 bytes array.
 * `y_parity`: Value 0 or 1.
-* `r`: 32 bytes array.
+* `r`: unsigned 256-bit integer.
 * `s`: unsigned 256-bit integer and value less or equal than `secp256k1n/2`, specified in [EIP-2](./eip-2.md).
 
 The fields `chain_id`, `nonce`, `max_priority_fee_per_gas`, `max_fee_per_gas`, `gas_limit`, `destination`, `value`, `data`, and `access_list` of the outer transaction follow the same semantics as [EIP-4844](./eip-4844.md). *Note, this means a null destination is not valid.*