For the filling, in a stand mixer with a paddle attachment, beat cashew cream, cream of coconut, 1/2 cup coconut milk, vanilla and 1/2 teaspoon salt until combined. Add 1/2 cup agave. (Add up to 2 tablespoons more agave if a sweeter taste is desired.) Add beaten eggs gradually, mixing to incoroporate after each egg is added. Pour filling over crust in springform pan and bake in a water bath until edges of cheesecake are set and filling reaches 150°, about 1 hour (the center will still be jiggly and will firm up in the remaining hour in the oven resulting in a very creamy texture).