{ "rules_discount_the_couponme_product" : {
    "LABEL" : "Discount the couponme product",
    "PLUGIN" : "reaction rule",
    "REQUIRES" : [ "rules", "commerce_line_item", "commerce_product_reference" ],
    "ON" : [ "commerce_product_calculate_sell_price" ],
    "IF" : [
      { "entity_has_field" : { "entity" : [ "commerce-line-item" ], "field" : "commerce_product" } },
      { "data_is" : {
          "data" : [ "commerce-line-item:commerce-product:sku" ],
          "value" : "COUPONME"
        }
      },
      { "entity_has_field" : { "entity" : [ "commerce-line-item" ], "field" : "field_coupon" } },
      { "data_is" : {
          "data" : [ "commerce-line-item:field-coupon" ],
          "value" : "abracadabra"
        }
      }
    ],
    "DO" : [
      { "commerce_line_item_unit_price_multiply" : {
          "commerce_line_item" : [ "commerce_line_item" ],
          "amount" : ".6",
          "component_name" : "discount",
          "round_mode" : "1"
        }
      }
    ]
  }
}