diff --git a/ethers/providers/rpccalls/conversions.nim b/ethers/providers/rpccalls/conversions.nim
index 1a21ed7..493b061 100644
--- a/ethers/providers/rpccalls/conversions.nim
+++ b/ethers/providers/rpccalls/conversions.nim
@@ -12,6 +12,14 @@ func `%`*(bytes: seq[byte]): JsonNode =
 func fromJson*(json: JsonNode, name: string, result: var seq[byte]) =
   result = hexToSeqByte(json.getStr())
 
+# byte arrays
+
+func `%`*[N](bytes: array[N, byte]): JsonNode =
+  %("0x" & bytes.toHex)
+
+func fromJson*[N](json: JsonNode, name: string, result: var array[N, byte]) =
+  hexToByteArray(json.getStr(), result)
+
 # Address
 
 func `%`*(address: Address): JsonNode =
diff --git a/ethers/providers/rpccalls/signatures.nim b/ethers/providers/rpccalls/signatures.nim
index 68ade27..e7eb521 100644
--- a/ethers/providers/rpccalls/signatures.nim
+++ b/ethers/providers/rpccalls/signatures.nim
@@ -6,3 +6,4 @@ proc eth_gasPrice(): UInt256
 proc eth_getTransactionCount(address: Address, blockTag: BlockTag): UInt256
 proc eth_estimateGas(transaction: Transaction): UInt256
 proc eth_chainId(): UInt256
+proc eth_sendTransaction(transaction: Transaction): array[32, byte]