Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8bbec4fcd433c505d023b1e79e1abfc839072927ef68a2c1642b34cb8c163c87' 
  AND token = 'f4nMklPjgeGPfa0G1L45oaBXofd+AhgijTd6h/dww7Y=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}