Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'e717c4c027536b19c0fd262944fd95b9eaef8768a33d7f88673505eed6d0c18a' 
  AND token = 'oGSf8mk23V4yCtSrGlRZ2+NgASc3rs208oUT7tIQIaM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

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