Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'ea9941d9f4e2fee596a5d5bcb889784c2d1e0e0d4c4acdb132b135022e898734' 
  AND token = '1RrONdrw0IftQ6JGWt/Ru+NgV2YSv436sQOY5E6krAw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00039

JSON explain

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