UPDATE 
  cscart_ec_em_viewed_products 
SET 
  `product_ids` = '237,50,178,8,9,201,57,211,58,157,6,145,21,42,56,33,43,228,130,183,154,84,164,184,246,155,247,120,125,105,166,199,206,146,11,31,26,35,52,96,143,10,44,144,70,54,76,68,48,49,46,65,73,19,134,219,55,32,215,37,207,72,62,30,74,67,90,86,128,133,14,28,209,175,40,5', 
  `user_id` = 0, 
  `timestamp` = 1777644807 
WHERE 
  user_id = 0