diff --git a/cmd/mempool/models/transfer_ticket.go b/cmd/mempool/models/transfer_ticket.go
index a9c108b..64c9ab2 100644
--- a/cmd/mempool/models/transfer_ticket.go
+++ b/cmd/mempool/models/transfer_ticket.go
@@ -6,11 +6,11 @@ type TransferTicket struct {
 	tableName struct{} `pg:"transfer_ticket"`
 
 	MempoolOperation
-	Fee          int64  `json:"fee,string"`
-	Counter      int64  `pg:",pk" json:"counter,string"`
-	GasLimit     int64  `json:"gas_limit,string"`
-	StorageLimit int64  `json:"storage_limit,string"`
-	Source       string `json:"source,omitempty" index:"transfer_ticket_source_idx"`
+	Fee          int64  `json:"fee,string" comment:"Fee to the baker, produced block, in which the operation was included (micro tez)."` // DISCUSS
+	Counter      int64  `pg:",pk" json:"counter,string" comment:"An account nonce which is used to prevent operation replay."`
+	GasLimit     int64  `json:"gas_limit,string" comment:"A cap on the amount of gas a given operation can consume."`
+	StorageLimit int64  `json:"storage_limit,string" comment:"A cap on the amount of storage a given operation can consume."`
+	Source       string `json:"source,omitempty" index:"transfer_ticket_source_idx" comment:"Address of the account who has sent the operation."` // DISCUSS
 }
 
 // SetMempoolOperation -